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If x = 38n, where n is a positive integer, which of the following digi
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Updated on: 18 Jan 2022, 04:14
Updated on: 18 Jan 2022, 04:14
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Question Stats:
75% (00:48) correct
25% (01:05) wrong based on 20 sessions
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If \(x = 38^{n}\), where n is a positive integer, which of the following digits could be the ones digit of x?
0
1
2
3
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6
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8
9
0
1
2
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4
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6
7
8
9
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C,E,G,I
Re: If x = 38n, where n is a positive integer, which of the following digi
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18 Jan 2022, 03:14
18 Jan 2022, 03:14
anyone can explain this pls
Re: If x = 38n, where n is a positive integer, which of the following digi
[#permalink]
18 Jan 2022, 04:14
18 Jan 2022, 04:14
2
aalap20 wrote:
anyone can explain this pls
Hi There!
There was a small typo in the question.
You can use 8's cyclicity rule here as the only units value that you will get substituting any value of n will be 2, 4,6 & 8.
Let me know if you need a detailed explanation
Regards
S
