quant review first edition

[praiseGod]

Not sure about DS #51:

Is xy>5

1. 1<=x<=3 and 2<=y<=4
2. x+y = 5

SPOILER:
The OA is c, but I think it should be E.

Take for instance x=10 and y=-5
-5(10) = -50 which is not greater than 5.

[clock60]

i also think the answer is E
(1) x=1,y=4 1*4<5
but x=3, y=2, 2*3=6>5
so 1 st not sufficient
(2) x+y=5 again x=1,y=4 1*4=4<5
x=2,y=3 2*3=6>5 not sufficient
together not sufficient with above examples
x=1.y=4 no
x=2 y=3 yes
so E

[sonikamadala]

yes it should be E

[xperience]

Originally Posted by clock60

i also think the answer is E
(1) x=1,y=4 1*4<5
but x=3, y=2, 2*3=6>5
so 1 st not sufficient
(2) x+y=5 again x=1,y=4 1*4=4<5
x=2,y=3 2*3=6>5 not sufficient
together not sufficient with above examples
x=1.y=4 no
x=2 y=3 yes
so E

I agree.. the answer should be E

Cheers-