This problem is in the DS section (QN. no.146) of OG11.
Is n an integer?
1) n^2 is an integer
2) sq. rt of n is an integer
The answer given is B.
If n^2 is an integer, n should also be an integer , right??? Shouldn't the answer be D.
Someone please explain.
Thanks
Pavithra
OG 11 DS problem
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If n^2 is an integer, n should also be an integer , right???
Not necessary. Fitting in numbers is the easiest method to verify. Root of 2 is not an integer. But its square, i.e. 2 is an integer.
Not necessary. Fitting in numbers is the easiest method to verify. Root of 2 is not an integer. But its square, i.e. 2 is an integer.