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Q.

The number of even divisors of 18 is

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a

12

b

6

c

18

d

3

answer is D.

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Detailed Solution

The number of even divisors of 18

$18 = 2^{1} \times 3^{2}$

$= (1 + 1) (2 + 1)$

$= 2 \times 3$

$= 6$

The number of odd divisors $= (2 + 1) = 3$

The number of even divisors of 18 $= 6 - 3 = 3$

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