Question

Which of the following number would have digit 6 at units place? (a) 19^2 (b)24^2 (c)25^2 (d) 13^2​

Answer 1

The following would have digit 6 at it's units place:-

(b)24²

Prove:-

On evaluating, 24²=24×24=576, which has 6 in it's units place.

Hence, it's verified.

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