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kauldheeraj
- Senior | Next Rank: 100 Posts
- Posts: 34
- Joined: Thu Jul 30, 2009 6:14 pm
- Thanked: 3 times
IMO A
Statement 1:
I assume it's y^3:
take an integer: e.g. (2): 2*2*2=8
take a fraction: e.g. (1/2): 1/2*1/2*1/2=1/(2^3)=1/8
Only an integer y will yield an integer y^3.
SUFFICIENT.
Statement 2:
3*y:
take an integer: e.g. (3):3*3=9
take a fraction: e.g. (1/3): 3*(1/3)=1
Y could be an integer or a fraction for 3*y to become an integer.
INSUFFICIENT.
