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The last digit of the positive even number n equals the last
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30 May 2018, 00:51
30 May 2018, 00:51
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Question Stats:
100% (00:54) correct
0% (00:00) wrong based on 4 sessions
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The last digit of the positive even number n equals the last digit of \(n^2\). Which one of the following could be n ?
(A) 12
(B) 14
(C) 15
(D) 16
(E) 17
(A) 12
(B) 14
(C) 15
(D) 16
(E) 17
Re: The last digit of the positive even number n equals the last
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01 Jun 2018, 15:18
01 Jun 2018, 15:18
Expert Reply
Look at the even options one by one.
(A) 12 .... \(12^2=144\)
(B) 14 .... \(14^2=196\)
(C) 15 .... ignore it is odd
(D) 16 .... \(16^2=256\) Correct
(E) 17 .... ignore it is odd
(A) 12 .... \(12^2=144\)
(B) 14 .... \(14^2=196\)
(C) 15 .... ignore it is odd
(D) 16 .... \(16^2=256\) Correct
(E) 17 .... ignore it is odd
gmatclubot
Re: The last digit of the positive even number n equals the last [#permalink]
01 Jun 2018, 15:18
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