Question

If


`{a}^(2) b = {12}^(2)`
and b is an odd integer, then a could be divisible by all of the following EXCEPT
A. 3
B. 4
C. 6
D. 9
E. 12

Answer 1

12^2=144

144 is divided by b which also is an odd interger, there only 2 numbers : 1 and 3

if b=3, a^2=48, then there will be no a available

if b=1 , a^2=144, then a is 12 and 12 can not be divided by 9

The answer is D