Question 51
Find the least number which must be subtracted from 18265 to make it a perfect square
Solution
Square root of 18265 = $$\sqrt{18265} \approx 135.14$$
=> $$(135)^2$$ < $$18265$$ < $$(136)^2$$
Now, $$(135)^2=18225$$
=> Least number which must be subtracted from 18265 to make it a perfect square = $$18265-18225=40$$
=> Ans - (C)
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