NIACL Model Paper 9 with solutions for free online practice

Question : 43 of 100

Marks: +1, -0

What is the least number to be added to 4321 to make it a perfect square?

Solution:

Clearly,

65^2 < 4321 < 66^2

65^2 < 4321 < 4356

∴Required number

= 4356 - 4321 = 35

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