honchos wrote:
If a and b are positive integers, what is the units digit of b ?
(1) b is 25% greater than a.
(2) If b is decreased by 50%, the result is not an integer.
Given : positive integers a and b
DS: units digit of b?
Statement 1 : b = 1.25 a = (5/4)a
So a is multiple of 4 and b is a multiple of 5
a= 4, b =5
a=8, b=10
a=12, b=15
a=16, b= 20
So, unit's digit of b is either 0 or 5
NOT SUFFICIENT
Statement 2 : Lets say the resultant value is c. So c = 0.5b and c is not an integer.
So, c must
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