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If X = 27^324 and Y = 3^134, what is the units digit of X/Y?

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If X = 27^324 and Y = 3^134, what is the units digit of X/Y?  [#permalink]

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New post 28 Apr 2016, 00:16
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Question Stats:

66% (01:13) correct 34% (01:47) wrong based on 116 sessions

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Re: If X = 27^324 and Y = 3^134, what is the units digit of X/Y?  [#permalink]

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New post 28 Apr 2016, 01:23
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Bunuel wrote:
If \(X = 27^{324}\) and \(Y = 3^{134}\), what is the units digit of X/Y?

A. 1
B. 3
C. 5
D. 7
E. 9


Basically it tests pattern : (3,9,7,1)

If we take write 27 in terms of 3 and take the dr to the top, it will result in 3^838

since pattern = 4 divide 838/4 and reminder = 2 ------- this points to 9 in the pattern (3,9,7,1)
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Re: If X = 27^324 and Y = 3^134, what is the units digit of X/Y?  [#permalink]

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New post 03 Nov 2018, 02:16
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Re: If X = 27^324 and Y = 3^134, what is the units digit of X/Y? &nbs [#permalink] 03 Nov 2018, 02:16
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If X = 27^324 and Y = 3^134, what is the units digit of X/Y?

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