Concept-wise Practice

like-radicals MCQ Questions for Class 10

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

Practice Questions

13 questions tagged with like-radicals.

किस विकल्प में \(\sqrt{50}+3\sqrt{8}-\sqrt{18}\) का सही सरल रूप है?

Which option gives the correct simplified form of \(\sqrt{50}+3\sqrt{8}-\sqrt{18}\)?

Explanation opens after your attempt
Correct Answer

A. \(8\sqrt{2}\)

Step 1

Concept

\(\sqrt{50}=5\sqrt{2}\), \(3\sqrt{8}=6\sqrt{2}\) and \(\sqrt{18}=3\sqrt{2}\). Hence the value is \(8\sqrt{2}\).

Step 2

Why this answer is correct

The correct answer is A. \(8\sqrt{2}\). \(\sqrt{50}=5\sqrt{2}\), \(3\sqrt{8}=6\sqrt{2}\) and \(\sqrt{18}=3\sqrt{2}\). Hence the value is \(8\sqrt{2}\).

Step 3

Exam Tip

\(\sqrt{50}=5\sqrt{2}\), \(3\sqrt{8}=6\sqrt{2}\) और \(\sqrt{18}=3\sqrt{2}\) है। इसलिए मान \(8\sqrt{2}\) है।

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यदि \(a=\sqrt{2}+\sqrt{8}\), तो (a) का सरल रूप क्या है और वह किस प्रकार की संख्या है?

If \(a=\sqrt{2}+\sqrt{8}\), what is the simplified form and type of (a)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{2}\), अपरिमेय\(3\sqrt{2}\), irrational

Step 1

Concept

\(\sqrt{8}=2\sqrt{2}\), so \(a=3\sqrt{2}\), irrational. Combine like radicals in exams.

Step 2

Why this answer is correct

The correct answer is A. \(3\sqrt{2}\), अपरिमेय / \(3\sqrt{2}\), irrational. \(\sqrt{8}=2\sqrt{2}\), so \(a=3\sqrt{2}\), irrational. Combine like radicals in exams.

Step 3

Exam Tip

\(\sqrt{8}=2\sqrt{2}\), इसलिए \(a=3\sqrt{2}\) अपरिमेय है। परीक्षा में समान करणी वाले पद जोड़ें।

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कौन सा कथन \(\sqrt{a}+\sqrt{a}\) के लिए सही है जब (a) पूर्ण वर्ग नहीं है?

Which statement is correct for \(\sqrt{a}+\sqrt{a}\) when (a) is not a perfect square?

Explanation opens after your attempt
Correct Answer

B. यह \(2\sqrt{a}\) के बराबर अपरिमेय हैIt equals \(2\sqrt{a}\) and is irrational

Step 1

Concept

Like terms give \(\sqrt{a}+\sqrt{a}=2\sqrt{a}\).

Step 2

Why this answer is correct

Since (a) is not a perfect square \(\sqrt{a}\) is irrational and its double is irrational.

Step 3

Exam Tip

Add like radicals like algebraic terms. चरण 1: समान पद जोड़ने पर \(\sqrt{a}+\sqrt{a}=2\sqrt{a}\)। चरण 2: (a) पूर्ण वर्ग नहीं है इसलिए \(\sqrt{a}\) अपरिमेय है और उसका दुगुना भी अपरिमेय है। चरण 3: समान वर्गमूलों को बीजगणितीय पदों की तरह जोड़ें।

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कौन-सा विकल्प \(\sqrt{96}-\sqrt{54}+\sqrt{24}\) का सही सरल रूप है?

Which option is the correct simplified form of \(\sqrt{96}-\sqrt{54}+\sqrt{24}\)?

Explanation opens after your attempt
Correct Answer

A. \(5\sqrt{6}\)

Step 1

Concept

\(\sqrt{96}=4\sqrt{6}\), \(\sqrt{54}=3\sqrt{6}\), and \(\sqrt{24}=2\sqrt{6}\).

Step 2

Why this answer is correct

\(4\sqrt{6}-3\sqrt{6}+2\sqrt{6}=3\sqrt{6}\), so the correct value is \(3\sqrt{6}\).

Step 3

Exam Tip

Match the options with your simplified result carefully. चरण 1: \(\sqrt{96}=4\sqrt{6}\), \(\sqrt{54}=3\sqrt{6}\), और \(\sqrt{24}=2\sqrt{6}\)। चरण 2: \(4\sqrt{6}-3\sqrt{6}+2\sqrt{6}=3\sqrt{6}\), इसलिए सही मान \(3\sqrt{6}\) है। चरण 3: विकल्प मिलाते समय अपनी सरल गणना से मिलान करें।

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कौन-सा विकल्प \(\sqrt{18}+\sqrt{50}-\sqrt{8}\) का सही सरल रूप है?

Which option is the correct simplified form of \(\sqrt{18}+\sqrt{50}-\sqrt{8}\)?

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

\(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), and \(\sqrt{8}=2\sqrt{2}\).

Step 2

Why this answer is correct

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

Step 3

Exam Tip

Keep the signs carefully while adding or subtracting coefficients. चरण 1: \(\sqrt{18}=3\sqrt{2}\), \(\sqrt{50}=5\sqrt{2}\), और \(\sqrt{8}=2\sqrt{2}\)। चरण 2: \(3\sqrt{2}+5\sqrt{2}-2\sqrt{2}=6\sqrt{2}\)। चरण 3: चिह्नों को ध्यान से रखकर गुणांक जोड़ें या घटाएँ।

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कौन-सा विकल्प \(\sqrt{48}+\sqrt{75}-\sqrt{27}\) को सरल करके देता है?

Which option gives the simplified form of \(\sqrt{48}+\sqrt{75}-\sqrt{27}\)?

Explanation opens after your attempt
Correct Answer

B. \(6\sqrt{3}\)

Step 1

Concept

\(\sqrt{48}=4\sqrt{3}\), \(\sqrt{75}=5\sqrt{3}\), and \(\sqrt{27}=3\sqrt{3}\).

Step 2

Why this answer is correct

\(4\sqrt{3}+5\sqrt{3}-3\sqrt{3}=6\sqrt{3}\).

Step 3

Exam Tip

For like surds, work with the coefficients. चरण 1: \(\sqrt{48}=4\sqrt{3}\), \(\sqrt{75}=5\sqrt{3}\), और \(\sqrt{27}=3\sqrt{3}\)। चरण 2: \(4\sqrt{3}+5\sqrt{3}-3\sqrt{3}=6\sqrt{3}\)। चरण 3: एक ही मूल वाले पदों में गुणांकों पर काम करें।

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कौन-सा विकल्प \(\sqrt{2}+\sqrt{18}\) का सही सरल रूप और प्रकृति बताता है?

Which option gives the correct simplified form and nature of \(\sqrt{2}+\sqrt{18}\)?

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{2}\), अपरिमेय\(4\sqrt{2}\), irrational

Step 1

Concept

\(\sqrt{18}=3\sqrt{2}\).

Step 2

Why this answer is correct

\(\sqrt{2}+\sqrt{18}=\sqrt{2}+3\sqrt{2}=4\sqrt{2}\), which is irrational.

Step 3

Exam Tip

For like surds, add only the outside coefficients. चरण 1: \(\sqrt{18}=3\sqrt{2}\) होता है। चरण 2: \(\sqrt{2}+\sqrt{18}=\sqrt{2}+3\sqrt{2}=4\sqrt{2}\), जो अपरिमेय है। चरण 3: समान मूल वाले पदों में केवल बाहर के गुणांक जोड़ें।

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यदि \(x=\sqrt{11}+\sqrt{44}\), तो (x) का सरल रूप और प्रकृति क्या है?

If \(x=\sqrt{11}+\sqrt{44}\), what is the simplified form and nature of (x)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{11}\), अपरिमेय\(3\sqrt{11}\), irrational

Step 1

Concept

\(\sqrt{44}=\sqrt{4\times11}=2\sqrt{11}\).

Step 2

Why this answer is correct

Hence \(x=\sqrt{11}+2\sqrt{11}=3\sqrt{11}\), and \(\sqrt{11}\) is irrational.

Step 3

Exam Tip

For like surds, add only the coefficients, not the numbers inside the roots. चरण 1: \(\sqrt{44}=\sqrt{4\times11}=2\sqrt{11}\) होता है। चरण 2: इसलिए \(x=\sqrt{11}+2\sqrt{11}=3\sqrt{11}\), और \(\sqrt{11}\) अपरिमेय है। चरण 3: समान मूल वाले पदों में केवल गुणांक जोड़ें, मूल के अंदर की संख्या नहीं।

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\(\sqrt{7}+2\sqrt{7}\) किसके बराबर है?

What is \(\sqrt{7}+2\sqrt{7}\) equal to?

Explanation opens after your attempt
Correct Answer

B. \(3\sqrt{7}\)

Step 1

Concept

Both terms contain the same radical \(\sqrt{7}\).

Step 2

Why this answer is correct

\(1\sqrt{7}+2\sqrt{7}=3\sqrt{7}\).

Step 3

Exam Tip

For like radicals, add only the outside coefficients. चरण 1: दोनों पदों में \(\sqrt{7}\) समान है। चरण 2: \(1\sqrt{7}+2\sqrt{7}=3\sqrt{7}\)। चरण 3: समान वर्गमूलों में केवल बाहर के गुणांक जोड़ें।

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\(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}\)?

Explanation opens after your attempt
Correct Answer

A. \(4\sqrt{10}\)

Step 1

Concept

Four like radical terms are being added.

Step 2

Why this answer is correct

\(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}=4\sqrt{10}\).

Step 3

Exam Tip

When adding like radicals, add only the coefficients. चरण 1: चार समान वर्गमूल पद जोड़े जा रहे हैं। चरण 2: \(\sqrt{10}+\sqrt{10}+\sqrt{10}+\sqrt{10}=4\sqrt{10}\)। चरण 3: समान वर्गमूलों को जोड़ते समय केवल गुणांक जोड़ें।

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\(\sqrt{11}+\sqrt{11}\) का सरल रूप क्या होगा?

What will be the simplified form of \(\sqrt{11}+\sqrt{11}\)?

Explanation opens after your attempt
Correct Answer

C. \(2\sqrt{11}\)

Step 1

Concept

Both terms have the same square root.

Step 2

Why this answer is correct

\(\sqrt{11}+\sqrt{11}=2\sqrt{11}\).

Step 3

Exam Tip

For like radicals, add only the coefficients, not the numbers inside the roots. चरण 1: दोनों पद समान वर्गमूल वाले हैं। चरण 2: \(\sqrt{11}+\sqrt{11}=2\sqrt{11}\)। चरण 3: समान वर्गमूलों में अंदर की संख्याएँ नहीं, केवल गुणांक जोड़े जाते हैं।

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\(\sqrt{3}+2\sqrt{3}\) किसके बराबर है?

What is \(\sqrt{3}+2\sqrt{3}\) equal to?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{3}\)

Step 1

Concept

Both terms have the same radical \(\sqrt{3}\).

Step 2

Why this answer is correct

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

Step 3

Exam Tip

For like radicals, add only the coefficients. चरण 1: दोनों पदों में \(\sqrt{3}\) समान है। चरण 2: \(1\sqrt{3}+2\sqrt{3}=3\sqrt{3}\)। चरण 3: समान वर्गमूलों में केवल गुणांक जोड़ें।

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\(\sqrt{6}+\sqrt{6}+\sqrt{6}\) का सरल रूप क्या है?

What is the simplified form of \(\sqrt{6}+\sqrt{6}+\sqrt{6}\)?

Explanation opens after your attempt
Correct Answer

A. \(3\sqrt{6}\)

Step 1

Concept

Three like irrational terms are being added.

Step 2

Why this answer is correct

\(\sqrt{6}+\sqrt{6}+\sqrt{6}=3\sqrt{6}\).

Step 3

Exam Tip

Count like radicals as coefficients. चरण 1: तीन समान अपरिमेय पद जोड़े जा रहे हैं। चरण 2: \(\sqrt{6}+\sqrt{6}+\sqrt{6}=3\sqrt{6}\)। चरण 3: समान वर्गमूलों को गुणांक की तरह गिनें।

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