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11 results found for "estimation" in Class 10.

Question Hard Mathematics Chapter 2: Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा विकल्प \(\sqrt{99}\) और \(\sqrt{100}\) के बीच एक परिमेय संख्या है?

Which option is a rational number between \(\sqrt{99}\) and \(\sqrt{100}\)?

Explanation opens after your attempt
Correct Answer

A. (9.98)

Step 1

Concept

\(\sqrt{99}\) is about (9.95) and \(\sqrt{100}=10\). (9.98) is a rational number between them.

Step 2

Why this answer is correct

The correct answer is A. (9.98). \(\sqrt{99}\) is about (9.95) and \(\sqrt{100}=10\). (9.98) is a rational number between them.

Step 3

Exam Tip

\(\sqrt{99}\) लगभग (9.95) है और \(\sqrt{100}=10\) है। (9.98) इनके बीच की परिमेय संख्या है।

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Question Medium Mathematics Chapter 2: Polynomials Irrational numbers and real numbers Class 10 Level 27

कौन सा विकल्प \(\sqrt{11}\) के निकटतम दो पूर्णांकों को सही बताता है?

Which option correctly gives the two nearest integers between which \(\sqrt{11}\) lies?

Explanation opens after your attempt
Correct Answer

A. (3) और (4)(3) and (4)

Step 1

Concept

Since (9<11<16), \(3<\sqrt{11}<4\). Estimate using squares.

Step 2

Why this answer is correct

The correct answer is A. (3) और (4) / (3) and (4). Since (9<11<16), \(3<\sqrt{11}<4\). Estimate using squares.

Step 3

Exam Tip

क्योंकि (9<11<16) इसलिए \(3<\sqrt{11}<4\)। वर्गों की मदद से अनुमान लगाएँ।

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Question Medium Mathematics Chapter 2: Polynomials Irrational numbers and real numbers Class 10 Level 26

कौन सा विकल्प \(\sqrt{7}\) के निकटतम दो पूर्णांकों को सही बताता है?

Which option correctly gives the two nearest integers between which \(\sqrt{7}\) lies?

Explanation opens after your attempt
Correct Answer

A. (2) और (3)(2) and (3)

Step 1

Concept

Since (4<7<9), \(2<\sqrt{7}<3\). Locate roots using squares.

Step 2

Why this answer is correct

The correct answer is A. (2) और (3) / (2) and (3). Since (4<7<9), \(2<\sqrt{7}<3\). Locate roots using squares.

Step 3

Exam Tip

क्योंकि (4<7<9) इसलिए \(2<\sqrt{7}<3\)। जड़ की स्थिति वर्गों से पहचानें।

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Question Medium Mathematics Chapter 2: Polynomials Irrational numbers and real numbers Class 10 Level 25

कौन सा विकल्प \(\sqrt{2}\) के निकटतम दो पूर्णांकों को सही बताता है?

Which option correctly gives the two nearest integers between which \(\sqrt{2}\) lies?

Explanation opens after your attempt
Correct Answer

A. (1) और (2)(1) and (2)

Step 1

Concept

Since (1<2<4), \(1<\sqrt{2}<2\). Use squares to locate roots.

Step 2

Why this answer is correct

The correct answer is A. (1) और (2) / (1) and (2). Since (1<2<4), \(1<\sqrt{2}<2\). Use squares to locate roots.

Step 3

Exam Tip

क्योंकि (1<2<4) इसलिए \(1<\sqrt{2}<2\)। वर्गों से जड़ की स्थिति पहचानें।

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Question Easy Mathematics Chapter 1: Real Numbers 6: Proof of irrationality of √2, √3, √5 Class 10 Level 18

\(\sqrt{2}\), \(\sqrt{3}\) और \(\sqrt{5}\) की अपरिमेयता में कौन सी विधि समान है?

Which method is common in proving the irrationality of \(\sqrt{2}\), \(\sqrt{3}\), and \(\sqrt{5}\)?

Explanation opens after your attempt
Correct Answer

B. विरोधाभास विधिMethod of contradiction

Step 1

Concept

In all three proofs, the number is first assumed rational.

Step 2

Why this answer is correct

Then a contradiction is shown using the coprime condition.

Step 3

Exam Tip

Therefore it is called the method of contradiction. चरण 1: तीनों प्रमाणों में पहले संख्या को परिमेय मानते हैं। चरण 2: फिर सहअभाज्य शर्त से विरोधाभास दिखाते हैं। चरण 3: इसलिए इसे विरोधाभास विधि कहा जाता है।

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Question Hard Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

कौन-सी संख्या \(\sqrt{3}\) और \(2\sqrt{3}\) के बीच है?

Which number lies between \(\sqrt{3}\) and \(2\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

B. (2)

Step 1

Concept

\(\sqrt{3}\) is about (1.732), and \(2\sqrt{3}\) is about (3.464).

Step 2

Why this answer is correct

(2) lies between these two values.

Step 3

Exam Tip

For comparison, you may use estimation or squaring. चरण 1: \(\sqrt{3}\) लगभग (1.732) है और \(2\sqrt{3}\) लगभग (3.464) है। चरण 2: (2) इन दोनों के बीच आता है। चरण 3: तुलना में अनुमान या वर्ग दोनों तरीकों का उपयोग कर सकते हैं।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{11}\) का लगभग मान कौन-सा है?

What is the approximate value of \(\sqrt{11}\)?

Explanation opens after your attempt
Correct Answer

B. (3.32)

Step 1

Concept

Since (9<11<16), \(\sqrt{11}\) lies between (3) and (4).

Step 2

Why this answer is correct

Its approximate value is (3.316), so (3.32) is close.

Step 3

Exam Tip

In estimation, first set the range using perfect squares. चरण 1: (9<11<16), इसलिए \(\sqrt{11}\) (3) और (4) के बीच होगा। चरण 2: इसका लगभग मान (3.316) है, इसलिए (3.32) निकट है। चरण 3: अनुमान में पहले पूर्ण वर्गों से सीमा तय करें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 15

\(\sqrt{7}\) का लगभग मान किसके सबसे निकट है?

The approximate value of \(\sqrt{7}\) is closest to which number?

Explanation opens after your attempt
Correct Answer

B. (2.65)

Step 1

Concept

The value of \(\sqrt{7}\) is about (2.646).

Step 2

Why this answer is correct

Among the options, (2.65) is closest.

Step 3

Exam Tip

For estimation, use nearby perfect squares (4) and (9) to understand the range. चरण 1: \(\sqrt{7}\) का मान लगभग (2.646) है। चरण 2: दिए गए विकल्पों में (2.65) सबसे निकट है। चरण 3: अनुमान में पास के पूर्ण वर्ग (4) और (9) से सीमा समझें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 14

\(\sqrt{3}\) का लगभग मान कौन-सा है?

What is the approximate value of \(\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

A. (1.73)

Step 1

Concept

\(\sqrt{3}\) is approximately (1.732).

Step 2

Why this answer is correct

So (1.73) is the closest correct value.

Step 3

Exam Tip

For estimation, remember common square-root values. चरण 1: \(\sqrt{3}\) का मान लगभग (1.732) है। चरण 2: इसलिए (1.73) सबसे सही निकट मान है। चरण 3: अनुमान के लिए सामान्य वर्गमूलों के मान याद रखें।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

\(\sqrt{3}\) का निकटतम मान कौन-सा है?

Which is the nearest value of \(\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

B. (1.73)

Step 1

Concept

The value of \(\sqrt{3}\) is approximately (1.732).

Step 2

Why this answer is correct

So (1.73) is the closest option.

Step 3

Exam Tip

In estimation questions, first see between which perfect squares the number lies. चरण 1: \(\sqrt{3}\) का मान लगभग (1.732) होता है। चरण 2: इसलिए (1.73) सबसे निकट विकल्प है। चरण 3: अनुमान वाले प्रश्न में पहले देखें कि संख्या किन पूर्ण वर्गों के बीच है।

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Question Easy Mathematics Chapter 1: Real Numbers 5: Irrational numbers Class 10 Level 13

\(\sqrt{2}\) का निकटतम मान कौन-सा है?

Which is the nearest value of \(\sqrt{2}\)?

Explanation opens after your attempt
Correct Answer

A. (1.41)

Step 1

Concept

The decimal value of \(\sqrt{2}\) is about (1.414).

Step 2

Why this answer is correct

Among the given options, (1.41) is the closest.

Step 3

Exam Tip

Remembering approximate values of common square roots helps in estimation. चरण 1: \(\sqrt{2}\) का दशमलव मान लगभग (1.414) होता है। चरण 2: दिए गए विकल्पों में (1.41) सबसे निकट है। चरण 3: कुछ सामान्य वर्गमूलों के लगभग मान याद रखने से अनुमान आसान होता है।

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