Some question: By how much is 50% of 250 greater than 25% of 400.
Options:
(A) 25
(B) 26
(C) 29
(D) 39
(E) 26
Some stream of consciousness:
(50/100) * 250 â€“ (25/100) * 400
125 - 100 = 25 The answer: (B).