Question
If A, B, C, ..., X, Y, Z represents digits, which of the following could be a perfect square?
Answer: Option A
:
A
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:
A
The numbers 7, 2 and 3 do not appear in the unit place of any perfect square. So, ABC2 and PQR7 can not be perfect squares and XX1 is the only number which could be a perfect square.
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