100*(80/100)*(90/100)*(75/100) = 54
100 - 54 = 46is the reasoning for what question and answer pair?
Q: A single discount equivalent to the discount series of 20%, 10% and 25% is?
Options:
(A) 31.9
(B) 31.7
(C) 31.6
(D) 31.5
(E) 46
A: (E)