1.

Tell on the basis of digits at ones place, which numbers are not perfect square?(i) 2304,(ii) 402,(iii) 3003,(iv) 100,(v) 1008

Answer»

If unit place digit of a number is as 2, 3 7 or 8 then number can not be a perfect square.

So (ii) 402 (iii) 3003 and (v) 1008 are not perfect square.



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