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If \(d\) is a positive integer, is \(\sqrt{d}\) greater than \(15?\)

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Source: — Data Sufficiency |
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Re: If \(d\) is a positive integer, is \(\sqrt{d}\) greater than \(15?\)

by DHRJ007 » Mon Sep 21, 2020 9:24 am

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Your Answer

A

B

C

D

E

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1) for d=25 , √25 <15. NO
for d=625,. √625>15. YES
INSUFFICIENT

2) for d=40, √40 <15. NO
For d=400, √400<15 YES
INSUFFICIENT
On Combining both 1 and 2,
d is divisible by 200
For d=200, √200<15. NO
For d=400, √400>15. YES
INSUFFICIENT


OA: E
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