How would you solve?
If s and t positive integers such that s/t = 64.12, which of the following could be the remainder when s is dvided by t?
Pretty old question.
Ok so we know that s/t = 64.12 => s/t = 64 + 0.12
So basically whatever was the remainder [lets say x]: x/t = 0.12 => x = 0.12t.
Now x has to be an integer less than t such that 0.12t is an integer.
Lets take each value one by one
x=2 => t = 2/0.12 ... t is not an integer
x=45 => t= 45/0.12 ... integer [Only possible]
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