kindly advise answer with explanation , for following DS question|
if X and Y are positive , is 3X > 7Y ?
1) X > Y + 4
2) -5X < -14Y
Re: DS problem
Using 1) alone we have 3x > 3y + 12 but there is no relation between 7y and (3y + 12).
Using 2) alone we have 3x > (42/5)y > 7y. (x, y are given as positive.)
Hence answer can be determined by 2) alone but not by 1) alone.