CAT 1990 Question Paper

Question 13

Mr X enters a positive integer Y(>1) in an electronic calculator and then goes on pressing the square root key repeatedly. Then

Solution

Take 64 for example.

$$\sqrt{64}$$ = 8

$$\sqrt{8}$$ = 2.828

$$\sqrt{2.828}$$ is close to 1.7

So, we can see that the result is tending towards 1.


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