X and Y are both integers. If X/Y = 57.40, then what is the sum of all the possible two digit remainders of X/Y?  Choose one:
A) 560
B) 616
C) 450
D) 900
E) 1024

Rationale: "remainder = 0.40 - - > 40 / 100 - - > can be written as ( 40 / 4 ) / ( 100 / 4 ) = 10 / 25 so remainders can be 10 , 20 , 30 , 40 , . . . . . 90 . we need the sum of only 2 digit remainders - - > 10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90 = 450 answer : c"
Answer: C