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Squares and Square Roots of Numbers

If 5278 is sq...

Question

If 5278 is squared, then what will be at unit place?

A

6

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B

7

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C

4

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D

8

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Solution

The correct option is C 4
If we square the unit digit of the number 5278 we get:

8² = 64

Hence, at the unit place of 5278² the number is 4.

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