If s and t are positive integers such that s/t = 64.15, which of the following could be the remainder when s is divided by t ?
Choose the correct choice from the following answers
A) 2
B) 4
C) 8
D) 20
E) 45
The remainder is 0.15 or 15/100. You can go one step further and say that X/Y=12/100, where X and Y are whole numbers. Plug in all the answer choices for X and see which one makes Y a whole number.   One thing that jumps out at me is that A, B, C, and D are all even. E on the other hand is odd. Why? Maybe I'll start plugging in here first.   45/Y=15/100   15Y=4500   Y=300   Answer: 45.
<result>E</result>
If s and t are positive integers such that s/t = 64.15, which of the following could be the remainder when s is divided by t ?