Hoozan wrote:
if a, b, c, and d are points on the number line such that a > b, what is the value of (a+b)(c+d)
(1) c is midway between a and b
(2) d is midway between b and c
Twin question:
https://gmatclub.com/forum/a-b-c-and-d- ... 74080.htmlNo numerical value, nor can we show that any of a+b or c+d is 0. Hence will be E.
(1) c is midway between a and b
So a+b=2c
Nothing much
(2) d is midway between b and c
b+c=2d
Combined what we have on a number line
b _ _ d _ _ c _ _ _ _ _ a
These numbers can be anywhere on number line
Insufficient
E