Question

A/3 is an integee but A/6 is not. B/5 is an integer but B/10 is not. Which of the following may not be an integer?
PLEASE GIVE FULL EXPLANATION​

Answer 1

A

Step-by-step explanation:

A is divisible by 3 i.e A = 3x

B is divisible by 5 i.e 5Y

now B option 5A-B = 15x - 5y

put X=1=Y

15-5 = 10 which is not divisible by 20