BrainLab wrote:
If x and y are positive numbers such that x + y = 1, which of the following could be the value of 100x + 200y?
I. 80
II. 140
III. 199
(A) II only
(B) III only
(C) I and II
(D) I and III
(E) II and III
100x + 200y can be rewritten as 100x + 100y + 100y = 100(x+y) + 100y = 100*1 + 100y = 100 + 100y, which clearly indicates that answer will be greater than 100. Hence, II and III.
Statistics : Posted by amankapoor • on 18 Sep 2015, 02:09 • Replies 39 • Views 89975
