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Units Digits in Cube Numbers

Which of the ...

Question

Which of the following has 1 as its unit digit in its cube root?

A

13824

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B

571787

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C

226981

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D

175616

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Solution

The correct option is C
226981

The cube root of a number ends with 1 if the number ends with 1. So, cube root of 226981 ends with 1

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