a = 3.45bAbdulla wrote:a and b are integers such that a/b = 3.45. If R is the remainder of a/b, which of the following could not be equal to R?
A) 3
B) 9
C) 36
D) 81
E) 144
Remainder equation can be written as follow:
A = 3B + 0.45B (Y= AX + Remainder ; 7 =2x3 +1 )
since your remainder is 0.45b , and b is an integer
You have to check whether 0.45B=Integer and make sure that B is an integer
B = Integer / 0.45 = 100 Integer / 45 = 20 Integer / 9
So any answer choice that is not divisible with 9 is the correct answer
Hence, A
