3. A number ending in 9 will have the units place of its square as
(a) 3
(b) 9
(c) 1
(d) 6
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Answer:
The square of 9 is 81. And the unit place of the square of 9 is 1. So a number ending in 9 will have the units place of it's square as 1. The answer is 1. Hope it helps u mate