\( \sqrt{45}+\sqrt{80}-\sqrt{20} \) का सही सरल रूप चुनिए।

Choose the correct simplified form of \( \sqrt{45}+\sqrt{80}-\sqrt{20} \).

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. \(5\sqrt{5}\)

Step 1

Concept

Convert all surds into terms of \( \sqrt{5} \). \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\) is correct.

Step 2

Why this answer is correct

The correct answer is B. \(5\sqrt{5}\). Convert all surds into terms of \( \sqrt{5} \). \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\) is correct.

Step 3

Exam Tip

तीनों करणी को \( \sqrt{5} \) के पदों में बदलें। \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\) सही है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

\( \sqrt{45}+\sqrt{80}-\sqrt{20} \) का सही सरल रूप चुनिए। / Choose the correct simplified form of \( \sqrt{45}+\sqrt{80}-\sqrt{20} \).

Correct Answer: B. \(5\sqrt{5}\). Explanation: तीनों करणी को \( \sqrt{5} \) के पदों में बदलें। \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\) सही है। / Convert all surds into terms of \( \sqrt{5} \). \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\) is correct.

Which concept should I revise for this Mathematics MCQ?

Convert all surds into terms of \( \sqrt{5} \). \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\) is correct.

What exam hint can help solve this Mathematics question?

तीनों करणी को \( \sqrt{5} \) के पदों में बदलें। \(3\sqrt{5}+4\sqrt{5}-2\sqrt{5}=5\sqrt{5}\) सही है।