Answer
The reasoning is that we get a non integer when we divide an odd number by a even number. Since 15 is odd and 2 and 4 are both even, 15 divided by 4 or 2 will leave a non integer.
Work Step by Step
Checking work,
15 = 4+2t
15-4=2t
11=2t
t = 11/2
Correct
