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Updated on: 05 Jul 2015, 08:24
Originally posted by abhinav008 on 04 Jul 2015, 07:24.
Last edited by Bunuel on 05 Jul 2015, 08:24, edited 5 times in total.
Last edited by Bunuel on 05 Jul 2015, 08:24, edited 5 times in total.
Edited the question.
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Question Stats:
84% (01:00) correct
16%
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based on 118
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If x is an integer, is x^3 divisible by 7
(1) x^2 is divisible by 7
(2) x^4 is divisible by 7
(1) x^2 is divisible by 7
(2) x^4 is divisible by 7
04 Jul 2015, 08:10
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abhinav008
hi,
ts given x is an integer
and 7 is a prime number so if any positive integer power of x is div by 7, all positive integer power of x will be div by 7..
ans is D..
04 Jul 2015, 10:41
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chetan2u
Thanks for the reply . You mentioned 7 is a prime number. So what if I change 7 to 4 . Is x^3 divisible by 4 if x^4 is divisible by 4.
I am not sure but I think answer will still be same. Correct me if I am wrong .
