Square of which of the following number will have 6 at its unit place?
(a) 38
(b) 24
(c) 32
(d) 45
To do:
We have to find which of the given number will have $6$ at its units place.
Solution:
We know that,
The square of a number having $4$ or $6$ at the units place ends in $6$.
Therefore,
The square of $24$ will have $6$ at its unit place.
Option (b) is the correct answer.
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