I think D,

A is sufficient if we plug the value;

ab = -6

here ab can be = 1, -6 $ 2,-3

x - y = 5

only 2 - (-3) = 5

therefore, a = 2, and b = -3

sufficient to answer the problem

In the same way B is also sufficient

Therefore answer is D

Let me know if i am wrong

i think this question is wrongly framed

Another way

Sudir Your expl is right , just see this one also. Pythagoras theorem a traingle can be in the ration of : 3,4,5 or 5,12,13 Add: 3+4+5 = 15 or 5+12+13 = 30 Perimeter is 60, therefore side can be: 15, 20, 25 or 10 , 24, 36 Now side PQ > PR, therefore Side PQ can be 20 or 24 and side PR can be 15 or 1...

Geometry

In the diagram to the right, triangle PQR has a right angle at Q and a perimeter of 60. Line segment QS is perpendicular to PR and has a length of 12. PQ > QR. What is the ratio of the area of triangle PQS to the area of triangle RQS?


3/2

7/4

15/8

16/9

2

Look simple put tough

Is x > y?

(1) x^1/2 > y

(2) x^3 > y

But dear, zero is neither positive nor negative integer.

MGMAT TIME SPEED DIST

Tom and Linda stand at point A. Linda begins to walk in a straight line away from Tom at a constant rate of 2 miles per hour. One hour later, Tom begins to jog in a straight line in the exact opposite direction at a constant rate of 6 miles per hour. If both Tom and Linda travel indefinitely, what i...

OG DS 25

If i and j are integers, is i + j an even integer?

1. i < 10
2. i = j