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43 results found for "repeating decimal" in Class 10.

Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि कोई संख्या सांत या आवर्ती दशमलव है तो वह कैसी संख्या होगी?

If a number has a terminating or repeating decimal, what type of number will it be?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

The decimal expansion of rational numbers is terminating or repeating. This identification is very useful in exams.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. The decimal expansion of rational numbers is terminating or repeating. This identification is very useful in exams.

Step 3

Exam Tip

परिमेय संख्याओं का दशमलव विस्तार सांत या आवर्ती होता है। यह पहचान परीक्षा में बहुत काम आती है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा विकल्प अनंत आवर्ती दशमलव है?

Which option is a non terminating repeating decimal?

Explanation opens after your attempt
Correct Answer

A. (1.272727...)

Step 1

Concept

The block (27) repeats so it is a repeating decimal. A repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. (1.272727...). The block (27) repeats so it is a repeating decimal. A repeating decimal is rational.

Step 3

Exam Tip

(27) बार बार दोहर रहा है इसलिए यह आवर्ती दशमलव है। आवर्ती दशमलव परिमेय होता है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा विकल्प अनंत लेकिन आवर्ती दशमलव है?

Which option is a non terminating but repeating decimal?

Explanation opens after your attempt
Correct Answer

A. (4.565656...)

Step 1

Concept

The block (56) repeats so it is a repeating decimal. A repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. (4.565656...). The block (56) repeats so it is a repeating decimal. A repeating decimal is rational.

Step 3

Exam Tip

(56) बार-बार दोहर रहा है इसलिए यह आवर्ती दशमलव है। आवर्ती दशमलव परिमेय होता है।

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Question Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

\(\frac{1}{2^4\cdot 5^6\cdot 17}\) में आवर्ती भाग शुरू होने से पहले कितने अनावर्ती दशमलव अंक आएँगे?

In \(\frac{1}{2^4\cdot 5^6\cdot 17}\), how many non-repeating decimal digits appear before the recurring part starts?

Explanation opens after your attempt
Correct Answer

B. (6)

Step 1

Concept

The factor (17) makes the decimal recurring, and the larger exponent among (2) and (5) is (6), giving the initial non-repeating part. Understand recurrence and delay separately.

Step 2

Why this answer is correct

The correct answer is B. (6). The factor (17) makes the decimal recurring, and the larger exponent among (2) and (5) is (6), giving the initial non-repeating part. Understand recurrence and delay separately.

Step 3

Exam Tip

(17) के कारण दशमलव आवर्ती होगा और (2), (5) की बड़ी घात (6) आरंभिक अनावर्ती भाग देगी। आवर्तीपन और आरंभिक देरी को अलग-अलग समझें।

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Question Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

\(\frac{1}{2^2\cdot 5^5\cdot 13}\) में आवर्ती भाग शुरू होने से पहले कितने अनावर्ती दशमलव अंक आएँगे?

In \(\frac{1}{2^2\cdot 5^5\cdot 13}\), how many non-repeating decimal digits appear before the recurring part starts?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

The factor (13) makes the decimal recurring, and the larger exponent among (2) and (5) is (5), giving the initial non-repeating part. Understand recurrence and delay separately.

Step 2

Why this answer is correct

The correct answer is B. (5). The factor (13) makes the decimal recurring, and the larger exponent among (2) and (5) is (5), giving the initial non-repeating part. Understand recurrence and delay separately.

Step 3

Exam Tip

(13) के कारण दशमलव आवर्ती होगा और (2), (5) की बड़ी घात (5) आरंभिक अनावर्ती भाग देगी। आवर्तीपन और आरंभिक देरी को अलग-अलग समझें।

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Question Expert Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 19

\(\frac{1}{2^3\cdot 5^2\cdot 7^2}\) में आवर्ती भाग शुरू होने से पहले कितने अनावर्ती दशमलव अंक आएँगे?

In \(\frac{1}{2^3\cdot 5^2\cdot 7^2}\), how many non-repeating decimal digits will appear before the recurring part starts?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

The factor \(7^2\) makes the decimal recurring, and the larger exponent among (2) and (5) is (3), giving the non-repeating start. In exams, separate recurrence from the initial delay.

Step 2

Why this answer is correct

The correct answer is B. (3). The factor \(7^2\) makes the decimal recurring, and the larger exponent among (2) and (5) is (3), giving the non-repeating start. In exams, separate recurrence from the initial delay.

Step 3

Exam Tip

हर में \(7^2\) होने से दशमलव आवर्ती होगा और (2), (5) की बड़ी घात (3) आरंभिक अनावर्ती भाग देती है। परीक्षा में आवर्तीपन और आरंभिक देरी को अलग-अलग पहचानें।

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Question Hard Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

किस भिन्न में आवर्ती भाग शुरू होने से पहले ठीक दो अनावर्ती दशमलव अंक आएँगे?

In which fraction will exactly two non-repeating decimal digits appear before the recurring part begins?

Explanation opens after your attempt
Correct Answer

B. \(\frac{1}{28}\)

Step 1

Concept

View the denominator in terms of (2), (5), and other factors.

Step 2

Why this answer is correct

\(28=2^2\cdot 7\), so the power (2) of (2) gives a delay of two places before the recurring part starts. The other options give a delay of (1) or a different case.

Step 3

Exam Tip

The delay before repetition is linked to the larger power of (2) and (5). चरण 1: हर को (2), (5) और बाकी गुणनखंडों में देखें। चरण 2: \(28=2^2\cdot 7\), इसलिए (2) की घात (2) आवर्ती भाग शुरू होने से पहले दो स्थानों की देरी देती है। बाकी विकल्पों में देरी (1) या अलग होती है। चरण 3: आवर्ती भाग की देरी (2) और (5) की बड़ी घात से जुड़ती है।

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Question Hard Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि \(z=\sqrt[3]{9}\) है तो \(z^3\) किस प्रकार की संख्या है?

If \(z=\sqrt[3]{9}\), what type of number is \(z^3\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

Cubing gives \(z^3=9\). Even if (z) is irrational, its cube here is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. Cubing gives \(z^3=9\). Even if (z) is irrational, its cube here is rational.

Step 3

Exam Tip

घन करने पर \(z^3=9\) मिलता है। भले (z) अपरिमेय हो, उसका घन यहाँ परिमेय है।

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Question Hard Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि \(a=\sqrt{8}+\sqrt{18}\) है तो (a) का वर्ग किस प्रकार की संख्या है?

If \(a=\sqrt{8}+\sqrt{18}\), what type of number is \(a^2\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

\(\sqrt{8}=2\sqrt{2}\) and \(\sqrt{18}=3\sqrt{2}\), so \(a=5\sqrt{2}\). Its square is (50), a rational number.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. \(\sqrt{8}=2\sqrt{2}\) and \(\sqrt{18}=3\sqrt{2}\), so \(a=5\sqrt{2}\). Its square is (50), a rational number.

Step 3

Exam Tip

\(\sqrt{8}=2\sqrt{2}\) और \(\sqrt{18}=3\sqrt{2}\), इसलिए \(a=5\sqrt{2}\)। इसका वर्ग (50) परिमेय है।

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Question Hard Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि \(x=\sqrt{5}+\sqrt{2}\) है तो \(x^2-2\sqrt{10}\) किस प्रकार की संख्या है?

If \(x=\sqrt{5}+\sqrt{2}\), what type of number is \(x^2-2\sqrt{10}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

Here \(x^2=7+2\sqrt{10}\), so subtracting gives (7). In such questions expand the square first.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. Here \(x^2=7+2\sqrt{10}\), so subtracting gives (7). In such questions expand the square first.

Step 3

Exam Tip

\(x^2=7+2\sqrt{10}\) इसलिए घटाने पर (7) मिलता है। ऐसे प्रश्नों में पहले वर्ग विस्तार करें।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा विकल्प (9.0202202220...) के बारे में सही है?

Which option is correct about (9.0202202220...)?

Explanation opens after your attempt
Correct Answer

A. यह अपरिमेय संख्या हैIt is an irrational number

Step 1

Concept

The decimal is infinite and has no fixed repeating block. So it is an irrational number.

Step 2

Why this answer is correct

The correct answer is A. यह अपरिमेय संख्या है / It is an irrational number. The decimal is infinite and has no fixed repeating block. So it is an irrational number.

Step 3

Exam Tip

दशमलव अनंत है और इसमें कोई निश्चित आवर्ती समूह नहीं है। इसलिए यह अपरिमेय संख्या है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

यदि कोई दशमलव अनंत और आवर्ती है तो वह किस प्रकार की संख्या है?

If a decimal is non terminating and repeating, what type of number is it?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

A non terminating repeating decimal is rational. Do not call it irrational only because it is infinite.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. A non terminating repeating decimal is rational. Do not call it irrational only because it is infinite.

Step 3

Exam Tip

अनंत आवर्ती दशमलव परिमेय होता है। केवल अनंत देखकर उसे अपरिमेय न मानें।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा विकल्प \(\sqrt[3]{343}\) की प्रकृति सही बताता है?

Which option correctly describes the nature of \(\sqrt[3]{343}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

\(\sqrt[3]{343}=7\), which is rational. The cube root of a perfect cube is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. \(\sqrt[3]{343}=7\), which is rational. The cube root of a perfect cube is rational.

Step 3

Exam Tip

\(\sqrt[3]{343}=7\) है जो परिमेय है। पूर्ण घन की घनमूल परिमेय होती है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा विकल्प (8.01011011101111...) के बारे में सही है?

Which option is correct about (8.01011011101111...)?

Explanation opens after your attempt
Correct Answer

A. यह अपरिमेय संख्या हैIt is an irrational number

Step 1

Concept

This decimal has no fixed repeating block. So it is non terminating and non repeating.

Step 2

Why this answer is correct

The correct answer is A. यह अपरिमेय संख्या है / It is an irrational number. This decimal has no fixed repeating block. So it is non terminating and non repeating.

Step 3

Exam Tip

इस दशमलव में निश्चित आवर्ती समूह नहीं है। इसलिए यह अनंत और अनावर्ती है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा विकल्प परिमेय संख्या दर्शाता है?

Which option represents a rational number?

Explanation opens after your attempt
Correct Answer

A. \(7.\overline{125}\)

Step 1

Concept

The bar shows repetition of (125). A repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. \(7.\overline{125}\). The bar shows repetition of (125). A repeating decimal is rational.

Step 3

Exam Tip

ऊपर की रेखा (125) के आवर्तन को बताती है। आवर्ती दशमलव परिमेय होता है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

कौन सा विकल्प \(\sqrt[3]{216}\) की प्रकृति सही बताता है?

Which option correctly describes the nature of \(\sqrt[3]{216}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

\(\sqrt[3]{216}=6\), which is rational. The cube root of a perfect cube is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. \(\sqrt[3]{216}=6\), which is rational. The cube root of a perfect cube is rational.

Step 3

Exam Tip

\(\sqrt[3]{216}=6\) है जो परिमेय है। पूर्ण घन की घनमूल परिमेय होती है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

यदि कोई दशमलव अनंत और अनावर्ती है तो वह किस प्रकार की संख्या है?

If a decimal is non terminating and non repeating, what type of number is it?

Explanation opens after your attempt
Correct Answer

A. अपरिमेय संख्याIrrational number

Step 1

Concept

A non terminating and non repeating decimal identifies an irrational number. Check carefully if no repeating block appears.

Step 2

Why this answer is correct

The correct answer is A. अपरिमेय संख्या / Irrational number. A non terminating and non repeating decimal identifies an irrational number. Check carefully if no repeating block appears.

Step 3

Exam Tip

अनंत और अनावर्ती दशमलव अपरिमेय संख्या की पहचान है। आवर्ती भाग न दिखे तो सावधानी से जाँचें।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

कौन सा विकल्प \(\sqrt[3]{125}\) की प्रकृति सही बताता है?

Which option correctly describes the nature of \(\sqrt[3]{125}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

\(\sqrt[3]{125}=5\), which is rational. The cube root of a perfect cube is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. \(\sqrt[3]{125}=5\), which is rational. The cube root of a perfect cube is rational.

Step 3

Exam Tip

\(\sqrt[3]{125}=5\) है जो परिमेय है। पूर्ण घन की घनमूल परिमेय होती है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

कौन सा विकल्प (3.010010001...) के बारे में सही है?

Which option is correct about (3.010010001...)?

Explanation opens after your attempt
Correct Answer

A. यह अपरिमेय संख्या हैIt is an irrational number

Step 1

Concept

The decimal is infinite and has no fixed repeating block. So it is irrational.

Step 2

Why this answer is correct

The correct answer is A. यह अपरिमेय संख्या है / It is an irrational number. The decimal is infinite and has no fixed repeating block. So it is irrational.

Step 3

Exam Tip

दशमलव अनंत है और कोई निश्चित आवर्ती समूह नहीं है। इसलिए यह अपरिमेय है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

कौन सा विकल्प \(0.\overline{123}\) की प्रकृति सही बताता है?

Which option correctly describes the nature of \(0.\overline{123}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

The bar shows repetition of (123). A repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. The bar shows repetition of (123). A repeating decimal is rational.

Step 3

Exam Tip

ऊपर की रेखा (123) के आवर्तन को बताती है। आवर्ती दशमलव परिमेय होता है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

यदि \(x=\sqrt{17}\) है तो \(x^2-5\) किस प्रकार की संख्या है?

If \(x=\sqrt{17}\), what type of number is \(x^2-5\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

Here \(x^2=17\), so \(x^2-5=12\). This is a rational number.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. Here \(x^2=17\), so \(x^2-5=12\). This is a rational number.

Step 3

Exam Tip

\(x^2=17\) इसलिए \(x^2-5=12\) है। यह परिमेय संख्या है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा विकल्प (0.2020020002...) के बारे में सही है?

Which option is correct about (0.2020020002...)?

Explanation opens after your attempt
Correct Answer

A. यह अपरिमेय संख्या हैIt is an irrational number

Step 1

Concept

It has no fixed repeating block and the decimal is infinite. So it is irrational.

Step 2

Why this answer is correct

The correct answer is A. यह अपरिमेय संख्या है / It is an irrational number. It has no fixed repeating block and the decimal is infinite. So it is irrational.

Step 3

Exam Tip

इसमें कोई निश्चित आवर्ती समूह नहीं है और दशमलव अनंत है। इसलिए यह अपरिमेय है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा विकल्प \(\sqrt[3]{64}\) की प्रकृति सही बताता है?

Which option correctly describes the nature of \(\sqrt[3]{64}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

\(\sqrt[3]{64}=4\), which is rational. The cube root of a perfect cube is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. \(\sqrt[3]{64}=4\), which is rational. The cube root of a perfect cube is rational.

Step 3

Exam Tip

\(\sqrt[3]{64}=4\) है जो परिमेय है। पूर्ण घन की घनमूल परिमेय होती है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा विकल्प \(2.\overline{45}\) की प्रकृति सही बताता है?

Which option correctly describes the nature of \(2.\overline{45}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

The bar shows repetition of (45). Every repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. The bar shows repetition of (45). Every repeating decimal is rational.

Step 3

Exam Tip

ऊपर की रेखा (45) के आवर्तन को दिखाती है। हर आवर्ती दशमलव परिमेय होता है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि \(x=0.\overline{12}\) है तो (x) किस प्रकार की संख्या है?

If \(x=0.\overline{12}\), what type of number is (x)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

The bar shows that (12) repeats. A repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. The bar shows that (12) repeats. A repeating decimal is rational.

Step 3

Exam Tip

ऊपर की रेखा बताती है कि (12) दोहरता है। आवर्ती दशमलव परिमेय होता है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा दशमलव अपरिमेय संख्या दिखाता है?

Which decimal shows an irrational number?

Explanation opens after your attempt
Correct Answer

A. (0.3030030003...)

Step 1

Concept

The first decimal is non terminating and non repeating. A non terminating non repeating decimal is irrational.

Step 2

Why this answer is correct

The correct answer is A. (0.3030030003...). The first decimal is non terminating and non repeating. A non terminating non repeating decimal is irrational.

Step 3

Exam Tip

पहला दशमलव अनंत और अनावर्ती है। अनंत अनावर्ती दशमलव अपरिमेय होता है।

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Question Medium Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि \(x=\sqrt{11}\) है तो \(x^2+1\) का मान किस प्रकार की संख्या है?

If \(x=\sqrt{11}\), what type of number is \(x^2+1\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

Here \(x^2=11\), so \(x^2+1=12\). This is a rational number.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. Here \(x^2=11\), so \(x^2+1=12\). This is a rational number.

Step 3

Exam Tip

\(x^2=11\) इसलिए \(x^2+1=12\) है। यह परिमेय संख्या है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा दशमलव परिमेय संख्या नहीं दिखाता?

Which decimal does not represent a rational number?

Explanation opens after your attempt
Correct Answer

A. (6.1010010001...)

Step 1

Concept

The first decimal is non terminating and non repeating so it is irrational. Terminating or repeating decimals are rational.

Step 2

Why this answer is correct

The correct answer is A. (6.1010010001...). The first decimal is non terminating and non repeating so it is irrational. Terminating or repeating decimals are rational.

Step 3

Exam Tip

पहला दशमलव अनंत और अनावर्ती है इसलिए अपरिमेय है। सांत या आवर्ती दशमलव परिमेय होते हैं।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा विकल्प \(\frac{1}{6}\) के दशमलव विस्तार को सही बताता है?

Which option correctly describes the decimal expansion of \(\frac{1}{6}\)?

Explanation opens after your attempt
Correct Answer

A. अनंत और आवर्तीNon terminating and repeating

Step 1

Concept

\(\frac{1}{6}=0.1666...\), which is repeating. A rational number has a terminating or repeating decimal.

Step 2

Why this answer is correct

The correct answer is A. अनंत और आवर्ती / Non terminating and repeating. \(\frac{1}{6}=0.1666...\), which is repeating. A rational number has a terminating or repeating decimal.

Step 3

Exam Tip

\(\frac{1}{6}=0.1666...\) है जो आवर्ती है। परिमेय संख्या का दशमलव सांत या आवर्ती होता है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

\(\sqrt[3]{27}\) किस प्रकार की संख्या है?

What type of number is \(\sqrt[3]{27}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

\(\sqrt[3]{27}=3\). The cube root of a perfect cube is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. \(\sqrt[3]{27}=3\). The cube root of a perfect cube is rational.

Step 3

Exam Tip

\(\sqrt[3]{27}=3\) है। पूर्ण घन की घनमूल परिमेय होती है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 26

\(2.\overline{18}\) किस प्रकार की संख्या है?

What type of number is \(2.\overline{18}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

The bar shows that (18) repeats. A repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. The bar shows that (18) repeats. A repeating decimal is rational.

Step 3

Exam Tip

ऊपर की रेखा बताती है कि (18) दोहरता है। आवर्ती दशमलव परिमेय होता है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा दशमलव अनंत और अनावर्ती है?

Which decimal is non terminating and non repeating?

Explanation opens after your attempt
Correct Answer

A. (0.2020020002...)

Step 1

Concept

(0.2020020002...) has no fixed repetition. A non terminating and non repeating decimal is irrational.

Step 2

Why this answer is correct

The correct answer is A. (0.2020020002...). (0.2020020002...) has no fixed repetition. A non terminating and non repeating decimal is irrational.

Step 3

Exam Tip

(0.2020020002...) में कोई स्थायी दोहराव नहीं है। अनंत और अनावर्ती दशमलव अपरिमेय होता है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

\(\frac{1}{7}\) का दशमलव प्रसार कैसा है?

What is the decimal expansion of \(\frac{1}{7}\) like?

Explanation opens after your attempt
Correct Answer

A. अनंत और आवर्तीNon terminating and repeating

Step 1

Concept

\(\frac{1}{7}\) is rational and its decimal is repeating. Rational numbers give terminating or repeating decimals.

Step 2

Why this answer is correct

The correct answer is A. अनंत और आवर्ती / Non terminating and repeating. \(\frac{1}{7}\) is rational and its decimal is repeating. Rational numbers give terminating or repeating decimals.

Step 3

Exam Tip

\(\frac{1}{7}\) परिमेय है और इसका दशमलव आवर्ती होता है। परिमेय संख्याएँ सांत या आवर्ती दशमलव देती हैं।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

यदि किसी संख्या का दशमलव प्रसार अनंत लेकिन आवर्ती है तो वह कैसी संख्या है?

If the decimal expansion of a number is non terminating but repeating then what type of number is it?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

A non terminating repeating decimal is rational. Do not call it irrational just because it is non terminating.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. A non terminating repeating decimal is rational. Do not call it irrational just because it is non terminating.

Step 3

Exam Tip

अनंत आवर्ती दशमलव परिमेय होता है। अनंत देखकर तुरंत अपरिमेय न मानें।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

\(0.\overline{7}\) किस प्रकार की संख्या है?

What type of number is \(0.\overline{7}\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

\(0.\overline{7}\) is a repeating decimal. Every repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. \(0.\overline{7}\) is a repeating decimal. Every repeating decimal is rational.

Step 3

Exam Tip

\(0.\overline{7}\) आवर्ती दशमलव है। हर आवर्ती दशमलव परिमेय होता है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा दशमलव परिमेय संख्या दिखाता है?

Which decimal represents a rational number?

Explanation opens after your attempt
Correct Answer

A. (2.454545...)

Step 1

Concept

The block (45) repeats so it is a repeating decimal. A repeating decimal is rational.

Step 2

Why this answer is correct

The correct answer is A. (2.454545...). The block (45) repeats so it is a repeating decimal. A repeating decimal is rational.

Step 3

Exam Tip

(45) बार-बार दोहर रहा है इसलिए यह आवर्ती दशमलव है। आवर्ती दशमलव परिमेय होता है।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

दशमलव (0.1010010001...) जिसमें कोई निश्चित आवर्ती क्रम नहीं है किस प्रकार की संख्या है?

The decimal (0.1010010001...) with no fixed repeating pattern is what type of number?

Explanation opens after your attempt
Correct Answer

A. अपरिमेय संख्याIrrational number

Step 1

Concept

A non terminating non repeating decimal is irrational. In exams always check the repeating pattern.

Step 2

Why this answer is correct

The correct answer is A. अपरिमेय संख्या / Irrational number. A non terminating non repeating decimal is irrational. In exams always check the repeating pattern.

Step 3

Exam Tip

अनावर्ती और अनंत दशमलव अपरिमेय होता है। परीक्षा में आवर्ती पैटर्न जरूर देखें।

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Question Easy Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 25

दशमलव (0.333...) किस प्रकार की संख्या है?

What type of number is the decimal (0.333...)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

A repeating decimal is rational. It can be written as \(\frac{1}{3}\).

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. A repeating decimal is rational. It can be written as \(\frac{1}{3}\).

Step 3

Exam Tip

दोहराने वाला दशमलव परिमेय होता है। इसे \(\frac{1}{3}\) लिखा जा सकता है।

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Question Medium Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

किसी परिमेय संख्या का हर सरलतम रूप में \(2^3 \times 5^2 \times 7\) है। उसके दशमलव प्रसार के बारे में सही कथन चुनिए।

The denominator of a rational number in lowest form is \(2^3 \times 5^2 \times 7\). Choose the correct statement about its decimal expansion.

Explanation opens after your attempt
Correct Answer

A. असांत आवर्तीNon-terminating repeating

Step 1

Concept

A rational number has a terminating decimal only when the denominator in lowest form has prime factors only (2) and (5).

Step 2

Why this answer is correct

Here the denominator also contains (7), so the decimal will not terminate, but since the number is rational, it will repeat.

Step 3

Exam Tip

In exams, always reduce the fraction first and then check the prime factors of the denominator. चरण 1: परिमेय संख्या का दशमलव प्रसार तभी सांत होता है जब सरलतम रूप में हर के अभाज्य गुणनखंड केवल (2) और (5) हों। चरण 2: यहां हर में (7) भी है, इसलिए दशमलव प्रसार सांत नहीं होगा, पर परिमेय संख्या होने के कारण वह आवर्ती होगा। चरण 3: परीक्षा में पहले भिन्न को सरलतम रूप में जांचें, फिर हर के अभाज्य गुणनखंड देखें।

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Question Medium Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

\(0.\overline{6}\) किस प्रकार की संख्या को दर्शाता है?

What type of number is represented by \(0.\overline{6}\)?

Explanation opens after your attempt
Correct Answer

B. परिमेय संख्या जिसका दशमलव असमाप्त आवर्ती हैRational number with non-terminating recurring decimal

Step 1

Concept

In \(0.\overline{6}\), the digit (6) repeats.

Step 2

Why this answer is correct

A non-terminating repeating decimal represents a rational number.

Step 3

Exam Tip

Do not confuse recurring decimals with irrational numbers. चरण 1: \(0.\overline{6}\) में अंक (6) बार-बार दोहरता है। चरण 2: दोहराव वाला असमाप्त दशमलव परिमेय संख्या होता है। चरण 3: आवर्ती दशमलव को अपरिमेय न समझें।

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Question Medium Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 19

(0.48) और \(0.\overline{48}\) के बारे में सही कथन कौन सा है?

Which statement is correct about (0.48) and \(0.\overline{48}\)?

Explanation opens after your attempt
Correct Answer

C. (0.48) समाप्त है और \(0.\overline{48}\) असमाप्त आवर्ती है(0.48) is terminating and \(0.\overline{48}\) is non-terminating recurring

Step 1

Concept

(0.48) stops after two decimal places.

Step 2

Why this answer is correct

In \(0.\overline{48}\), the block (48) repeats, so it is non-terminating recurring.

Step 3

Exam Tip

Exam tip: Keep the difference between stopping decimals and repeating decimals clear. चरण 1: (0.48) दो दशमलव स्थानों पर रुक जाता है। चरण 2: \(0.\overline{48}\) में (48) बार-बार आता है, इसलिए यह असमाप्त आवर्ती है। चरण 3: परीक्षा सुझाव: रुकने वाले दशमलव और बार-बार चलने वाले दशमलव में अंतर साफ रखें।

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Question Easy Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 21

कौन सा दशमलव असमाप्त आवर्ती परिमेय संख्या का उदाहरण है?

Which decimal is an example of a non-terminating recurring rational number?

Explanation opens after your attempt
Correct Answer

B. \(0.727272\ldots\)

Step 1

Concept

In \(0.727272\ldots\), the block (72) repeats.

Step 2

Why this answer is correct

A repeating decimal is rational.

Step 3

Exam Tip

Exam tip: Do not only see that a decimal is long; check whether a fixed pattern repeats. चरण 1: \(0.727272\ldots\) में (72) का समूह बार-बार आ रहा है। चरण 2: बार-बार आने वाला दशमलव परिमेय होता है। चरण 3: परीक्षा सुझाव: केवल लंबा दशमलव नहीं, दोहराव का नियम पहचानें।

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Question Easy Mathematics Real Numbers 5: Irrational numbers Class 10 Level 13

\(0.3333\ldots\) किस प्रकार की संख्या है?

What type of number is \(0.3333\ldots\)?

Explanation opens after your attempt
Correct Answer

B. परिमेय संख्याRational number

Step 1

Concept

In \(0.3333\ldots\), the digit (3) repeats.

Step 2

Why this answer is correct

A recurring decimal is rational.

Step 3

Exam Tip

Do not call a repeating decimal irrational. चरण 1: \(0.3333\ldots\) में (3) बार-बार दोहराता है। चरण 2: आवर्ती दशमलव परिमेय संख्या होता है। चरण 3: बार-बार दोहरने वाला दशमलव देखकर उसे अपरिमेय न मानें।

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