Concept-wise Practice

square MCQ Questions for Class 10

square se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

80 questions tagged with square.

यदि \(x=\sqrt{7}+\sqrt{3}\) है तो \(x^2-10\) का मान क्या है?

If \(x=\sqrt{7}+\sqrt{3}\), what is the value of \(x^2-10\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{21}\)

Step 1

Concept

\(x^2=7+3+2\sqrt{21}=10+2\sqrt{21}\). Therefore \(x^2-10=2\sqrt{21}\).

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{21}\). \(x^2=7+3+2\sqrt{21}=10+2\sqrt{21}\). Therefore \(x^2-10=2\sqrt{21}\).

Step 3

Exam Tip

\(x^2=7+3+2\sqrt{21}=10+2\sqrt{21}\) है। इसलिए \(x^2-10=2\sqrt{21}\) होगा।

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यदि \(x=\sqrt{3}+\sqrt{2}\) है तो \(x^2-5\) का मान क्या है?

If \(x=\sqrt{3}+\sqrt{2}\), what is the value of \(x^2-5\)?

Explanation opens after your attempt
Correct Answer

A. \(2\sqrt{6}\)

Step 1

Concept

\(x^2=3+2+2\sqrt{6}=5+2\sqrt{6}\). Therefore \(x^2-5=2\sqrt{6}\).

Step 2

Why this answer is correct

The correct answer is A. \(2\sqrt{6}\). \(x^2=3+2+2\sqrt{6}=5+2\sqrt{6}\). Therefore \(x^2-5=2\sqrt{6}\).

Step 3

Exam Tip

\(x^2=3+2+2\sqrt{6}=5+2\sqrt{6}\) है। इसलिए \(x^2-5=2\sqrt{6}\) है।

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कौन सा विकल्प (\(\sqrt{20}-\sqrt{5}\)2) का मान है?

Which option is the value of (\(\sqrt{20}-\sqrt{5}\)2)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

\(\sqrt{20}=2\sqrt{5}\), so the bracket becomes \(\sqrt{5}\). Its square is (5).

Step 2

Why this answer is correct

The correct answer is A. (5). \(\sqrt{20}=2\sqrt{5}\), so the bracket becomes \(\sqrt{5}\). Its square is (5).

Step 3

Exam Tip

\(\sqrt{20}=2\sqrt{5}\), इसलिए कोष्ठक \(\sqrt{5}\) बनता है। उसका वर्ग (5) है।

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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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यदि \(y=\sqrt{18}+\sqrt{50}-\sqrt{8}\) है तो \(y^2\) का मान क्या है?

If \(y=\sqrt{18}+\sqrt{50}-\sqrt{8}\), what is the value of \(y^2\)?

Explanation opens after your attempt
Correct Answer

A. (72)

Step 1

Concept

\(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), and \(\sqrt{8}=2\sqrt{2}\), so \(y=6\sqrt{2}\). Its square is (72).

Step 2

Why this answer is correct

The correct answer is A. (72). \(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), and \(\sqrt{8}=2\sqrt{2}\), so \(y=6\sqrt{2}\). Its square is (72).

Step 3

Exam Tip

\(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\) और \(\sqrt{8}=2\sqrt{2}\), इसलिए \(y=6\sqrt{2}\)। वर्ग (72) होगा।

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कौन सा विकल्प (\(\sqrt{3}+\sqrt{12}\)2) का मान है?

Which option is the value of (\(\sqrt{3}+\sqrt{12}\)2)?

Explanation opens after your attempt
Correct Answer

A. (27)

Step 1

Concept

\(\sqrt{12}=2\sqrt{3}\), so the bracket becomes \(3\sqrt{3}\). Its square is (27).

Step 2

Why this answer is correct

The correct answer is A. (27). \(\sqrt{12}=2\sqrt{3}\), so the bracket becomes \(3\sqrt{3}\). Its square is (27).

Step 3

Exam Tip

\(\sqrt{12}=2\sqrt{3}\) इसलिए कोष्ठक \(3\sqrt{3}\) बनता है। उसका वर्ग (27) है।

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यदि \(x=\sqrt{19}\) है तो \(x^2\) क्या होगा?

If \(x=\sqrt{19}\), what is \(x^2\)?

Explanation opens after your attempt
Correct Answer

A. (19)

Step 1

Concept

(\(\sqrt{19}\)2=19). Squaring removes the square root.

Step 2

Why this answer is correct

The correct answer is A. (19). (\(\sqrt{19}\)2=19). Squaring removes the square root.

Step 3

Exam Tip

(\(\sqrt{19}\)2=19) होता है। वर्ग करने पर वर्गमूल हट जाती है।

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यदि \(x=\sqrt{13}\) है तो \(x^2\) का मान क्या है?

If \(x=\sqrt{13}\), what is the value of \(x^2\)?

Explanation opens after your attempt
Correct Answer

A. (13)

Step 1

Concept

(\(\sqrt{13}\)2=13). Squaring and taking the square root cancel each other.

Step 2

Why this answer is correct

The correct answer is A. (13). (\(\sqrt{13}\)2=13). Squaring and taking the square root cancel each other.

Step 3

Exam Tip

(\(\sqrt{13}\)2=13) होता है। वर्ग और वर्गमूल एक-दूसरे को समाप्त कर देते हैं।

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किस संख्या का वर्ग (2) होता है और वह अपरिमेय है?

Which number has square (2) and is irrational?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{2}\)

Step 1

Concept

(\(\sqrt{2}\)2=2) and \(\sqrt{2}\) is irrational. This is an important basic example.

Step 2

Why this answer is correct

The correct answer is A. \(\sqrt{2}\). (\(\sqrt{2}\)2=2) and \(\sqrt{2}\) is irrational. This is an important basic example.

Step 3

Exam Tip

(\(\sqrt{2}\)2=2) और \(\sqrt{2}\) अपरिमेय है। यह एक महत्वपूर्ण मूल उदाहरण है।

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यदि \(x=\sqrt{3}\) है तो \(x^2\) किस प्रकार की संख्या है?

If \(x=\sqrt{3}\), what type of number is \(x^2\)?

Explanation opens after your attempt
Correct Answer

A. परिमेय संख्याRational number

Step 1

Concept

(\(\sqrt{3}\)2=3) which is rational. The square of an irrational number can sometimes be rational.

Step 2

Why this answer is correct

The correct answer is A. परिमेय संख्या / Rational number. (\(\sqrt{3}\)2=3) which is rational. The square of an irrational number can sometimes be rational.

Step 3

Exam Tip

(\(\sqrt{3}\)2=3) है जो परिमेय है। अपरिमेय संख्या का वर्ग कभी-कभी परिमेय हो सकता है।

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कौन सी संख्या अपरिमेय है लेकिन उसका वर्ग परिमेय है?

Which number is irrational but its square is rational?

Explanation opens after your attempt
Correct Answer

B. \(\sqrt{11}\)

Step 1

Concept

\(\sqrt{11}\) is irrational because (11) is not a perfect square.

Step 2

Why this answer is correct

(\(\sqrt{11}\)2=11) which is rational.

Step 3

Exam Tip

Squaring may remove the radical. चरण 1: \(\sqrt{11}\) अपरिमेय है क्योंकि (11) पूर्ण वर्ग नहीं है। चरण 2: (\(\sqrt{11}\)2=11) परिमेय है। चरण 3: वर्ग करने पर वर्गमूल हट सकता है।

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यदि \(x=\sqrt{3}-1\), तो ((x+1)2) का मान क्या है?

If \(x=\sqrt{3}-1\), what is the value of ((x+1)2)?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

\(x+1=\sqrt{3}\).

Step 2

Why this answer is correct

Therefore ((x+1)2=\(\sqrt{3}\)2=3).

Step 3

Exam Tip

Simplify the inner expression first, then square it. चरण 1: \(x+1=\sqrt{3}\) है। चरण 2: इसलिए ((x+1)2=\(\sqrt{3}\)2=3)। चरण 3: पहले भीतर के पद को सरल करें, फिर वर्ग करें।

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यदि \(y=\sqrt{17}\), तो \(y^2\) का मान क्या होगा?

If \(y=\sqrt{17}\), what is the value of \(y^2\)?

Explanation opens after your attempt
Correct Answer

C. (17)

Step 1

Concept

We are given \(y=\sqrt{17}\).

Step 2

Why this answer is correct

(y-2=\(\sqrt{17}\)2=17).

Step 3

Exam Tip

Squaring a square root gives the number inside it. चरण 1: \(y=\sqrt{17}\) दिया है। चरण 2: (y-2=\(\sqrt{17}\)2=17)। चरण 3: वर्गमूल का वर्ग करने पर अंदर की संख्या ही मिलती है।

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\(\sqrt{13}\) का वर्ग किसके बराबर है?

The square of \(\sqrt{13}\) is equal to what?

Explanation opens after your attempt
Correct Answer

C. (13)

Step 1

Concept

Squaring a square root gives the number inside it.

Step 2

Why this answer is correct

(\(\sqrt{13}\)2=13).

Step 3

Exam Tip

Apply (\(\sqrt{a}\)2=a) directly. चरण 1: वर्गमूल का वर्ग करने पर अंदर की संख्या मिलती है। चरण 2: (\(\sqrt{13}\)2=13)। चरण 3: (\(\sqrt{a}\)2=a) को सीधे लागू करें।

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यदि \(y=\sqrt{11}\), तो \(y^2\) का मान क्या होगा?

If \(y=\sqrt{11}\), what is the value of \(y^2\)?

Explanation opens after your attempt
Correct Answer

A. (11)

Step 1

Concept

\(y=\sqrt{11}\).

Step 2

Why this answer is correct

(y-2=\(\sqrt{11}\)2=11).

Step 3

Exam Tip

Squaring a square root gives the original number inside it. चरण 1: \(y=\sqrt{11}\) है। चरण 2: (y-2=\(\sqrt{11}\)2=11)। चरण 3: वर्गमूल का वर्ग करने पर मूल संख्या मिलती है।

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यदि (a=18q+11), तो \(a^2+9\) को 18 से भाग देने पर शेषफल क्या होगा?

If (a=18q+11), what is the remainder when \(a^2+9\) is divided by 18?

Explanation opens after your attempt
Correct Answer

A. 2

Step 1

Concept

The remainder of (a) is 11.

Step 2

Why this answer is correct

The remainder of \(a^2+9\) comes from \(11^2+9=130\).

Step 3

Exam Tip

\(130=18\times7+4\), so the final remainder is 4. चरण 1: (a) का शेषफल 11 है। चरण 2: \(a^2+9\) का शेषफल \(11^2+9=130\) से मिलेगा। चरण 3: \(130=18\times7+4\), इसलिए अंतिम शेषफल 4 है।

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यदि (a=16q+9), तो \(a^2+7\) को 16 से भाग देने पर शेषफल क्या होगा?

If (a=16q+9), what is the remainder when \(a^2+7\) is divided by 16?

Explanation opens after your attempt
Correct Answer

C. 8

Step 1

Concept

The remainder of (a) is 9.

Step 2

Why this answer is correct

The remainder of \(a^2+7\) comes from \(9^2+7=88\).

Step 3

Exam Tip

\(88=16\times5+8\), so the final remainder is 8. चरण 1: (a) का शेषफल 9 है। चरण 2: \(a^2+7\) का शेषफल \(9^2+7=88\) से मिलेगा। चरण 3: \(88=16\times5+8\), इसलिए अंतिम शेषफल 8 है।

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यदि (a=12q+7), तो \(a^2+5\) को 12 से भाग देने पर शेषफल क्या होगा?

If (a=12q+7), what is the remainder when \(a^2+5\) is divided by 12?

Explanation opens after your attempt
Correct Answer

B. 6

Step 1

Concept

The remainder of (a) is 7.

Step 2

Why this answer is correct

The remainder of \(a^2+5\) comes from \(7^2+5=54\).

Step 3

Exam Tip

\(54=12\times4+6\), so the final remainder is 6. चरण 1: (a) का शेषफल 7 है। चरण 2: \(a^2+5\) का शेषफल \(7^2+5=54\) से मिलेगा। चरण 3: \(54=12\times4+6\), इसलिए अंतिम शेषफल 6 है।

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यदि (a=7q+3), तो \(a^2+2\) को 7 से भाग देने पर शेषफल क्या होगा?

If (a=7q+3), what is the remainder when \(a^2+2\) is divided by 7?

Explanation opens after your attempt
Correct Answer

A. 4

Step 1

Concept

The remainder of (a) is 3.

Step 2

Why this answer is correct

The remainder of \(a^2+2\) comes from \(3^2+2=11\), and (11=7+4).

Step 3

Exam Tip

Substitute the remainder in the expression, then find the final remainder. चरण 1: (a) का शेषफल 3 है। चरण 2: \(a^2+2\) का शेषफल \(3^2+2=11\) से मिलेगा, और (11=7+4)। चरण 3: व्यंजक में शेषफल रखकर फिर अंतिम शेषफल निकालें।

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यदि (a=5q+2), तो \(a^2+1\) को 5 से भाग देने पर शेषफल क्या होगा?

If (a=5q+2), what is the remainder when \(a^2+1\) is divided by 5?

Explanation opens after your attempt
Correct Answer

A. 0

Step 1

Concept

The remainder of (a) is 2.

Step 2

Why this answer is correct

The remainder of \(a^2+1\) comes from \(2^2+1=5\), which is exactly divisible by 5.

Step 3

Exam Tip

After substituting the remainder in the expression, check it again by the divisor. चरण 1: (a) का शेषफल 2 है। चरण 2: \(a^2+1\) का शेषफल \(2^2+1=5\) से मिलेगा, जो 5 से पूर्णतः विभाजित है। चरण 3: व्यंजक में शेषफल रखने के बाद उत्तर को फिर भाजक से जांचें।

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