1.

Which of the following numbers will not have 1 (one) at their unit’s place :(i) 322 (ii) 572 (iii) 692 (iv) 3212 (v) 2652

Answer»

The square of the following numbers will not have 1 at their units place : as only (1)2 = 1, (9)2 = 81 have 1 at then units place 

322, 572, 2652 i.e., (i), (ii) and (v)



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