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Units Digits in Cube Numbers

Find the unit...

Question

Find the unit's digit of the cube of 27.

A

3

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B

4

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C

6

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D

7

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Solution

The correct option is A 3
To find: The unit digit of the cube of 27.

The unit digit of the given number is 7.
We know that, $7^{3} = 343$ .
Unit digit of cube of 7 is 3.
Hence, the unit digit of cube of 27 will be 3.

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