1.

What is the least number to be added to 4700 to make it a perfect square? (a) 74 (b) 69 (c) 76 (d) 61 (e) None of these 

Answer»

d) 69 × 69 = 4761
68 × 68 = 4624
Clearly, 4624 < 4700 < 4761
Hence, 61 should be added to 4700 to make it a perfect square.



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