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Aptitude | Arithmetic Aptitude 2 | Question 5

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The least perfect square, which is divisible by each of 15, 20 and 36 is:

(A) 1200
(B) 800
(C) 1000
(D) 900

Answer: (D)


LCM of 15, 20 and 36 is 180

Now 180 = 3 x 3 x 2 x 2 x 5

To make it perfect square, it must
be multiplied from 5.

So required no. = 32 x 22 x 52 = 900

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Last Updated : 26 Apr, 2019
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