Give a quick stream of consciousness before answering the following question. How much 60% of 50 is greater than 40% of 30?
Options:
(A) 18
(B) 99
(C) 66
(D) 55
(E) 71
(60/100) * 50 (40/100) * 30
30 - 12 = 18
The answer: (A).