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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 3 · Set 3 · Q15
The smallest irrational number by which √ 20 should be multiplied so as to get a rational number, is:
The smallest irrational number by which $\displaystyle \sqrt{20}$ should be multiplied so as to get a rational number, is :
Official answer
(D)
$\displaystyle \sqrt{5}$
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CBSE Class 10 Mathematics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.