sondenso wrote:
if s and t ar positiv integrs such that s/t=64.12, which of the following could be the remainder when s is divided by t?
a. 2
b. 4
c. 8
d. 20
e. 45
The remainder is 0.12 or 12/100. 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=12/100
12Y=4500
Y=375
Answer: E.
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