question:How much 60% of 50 is greater than 40% of 30?
Options:
(A) 18
(B) 99
(C) 66
(D) 55
(E) 71
answer:(A)
Stream of consciousness:(60/100) * 50 (40/100) * 30
30 - 12 = 18

question:A can do a piece of work in 16 days. When he had worked for 2 days B joins him. If the complete work was finished in 8 days. In how many days B alone can finish the work?
Options:
(A) 18
(B) 77
(C) 66
(D) 55
(E) 12
answer:(E)
Stream of consciousness:8/16 + 6/x = 1
X = 12 days

question:Four of the five parts numbered (a), (b), (c), (d) and (e) in the following equation are exactly equal. Which part is not equal to the other four ? The number of that part is the answer.
Options:
(A) (x + 2y) (3x + 2y)
(B) (x + 2y) 2 + 2x(x + 2y)
(C) (3x + 2y) 2 2x(3x + 2y)
(D) 3x(x + 2y) + 2y(x + 2y)
(E) x(3x + 2y) 2y(3x 2y)
answer:
(E)
Stream of consciousness:Others are equal to 3x2 + 8xy + 4y2