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Joined: 16 May 2014
Posts: 592
Given Kudos: 0
GRE 1: Q165 V161
GRE Math Challenge-units digit of 57^n
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29 May 2014, 08:22
29 May 2014, 08:22
Expert Reply
00:00
Question Stats:
87% (00:26) correct
12% (00:26) wrong based on 16 sessions
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Which of the following could be the units digit of \(57^n\) where n is a positive integer?
Indicate all such digits.
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
(F) 5
(G) 6
(H) 7
(I) 8
(J) 9
Indicate all such digits.
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4
(F) 5
(G) 6
(H) 7
(I) 8
(J) 9
Show: :: OA
B,D,H,J
ShowHide Answer
Official Answer
B,D,H,J
Re: GRE Math Challenge-units digit of 57^n
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04 Sep 2018, 19:14
04 Sep 2018, 19:14
Can someone please answer the question.
As per me,we should get the answer from multiple of 7 .
In which, all of the options are answer.
As per me,we should get the answer from multiple of 7 .
In which, all of the options are answer.
