Aman has 729 coins. He gives a part of these coins to his cousin as his birthday gift. This part is equal to the square root of 729. How many coins did he give?

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Solution

The correct option is A
27

$\sqrt{729}$ = $\sqrt{3 \times 3 \times 3 \times 3 \times 3 \times 3}$

= $3 \times 3 \times 3 = 27$
Thus Aman's cousin gets 27 coins as his birthday gift.

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