HariS1992 wrote:
Is √(x + y) an integer?
(1) x^3 = 64
(2) x^2 = y – 3
1. x^3 = 64
We can get the value of x = 4, but without the value of y - we can't
say whether √(x + y) is an integer.
(Insufficient)2. x^2 = y – 3
If x = 1 and y = 4, then √(x + y) is not an integer
If x = 2 and y = 7, then √(x + y) is an integer
(Insufficient)
On combining the information in both the statements, we can clearly
get a unique value of x and y and √(x + y) is not an integer
(Sufficient - Option C)Btw, are you sure this is from the
OG - 2017(because if it is - it must have definitely been discussed)
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