bmwhype2 wrote:

Is ABC divisible by 24?

1. A B C are consecutive integers

2. AB is divisible by 12

i think it should be E

to be divisible by 24, prime factors must contain at least 2, 2, 2, and 3

1. A, B, C

could be 2, 3, and 4: yes

or 5,6,7: no

not sufficient

2. AB divisible by 12

AB contains 2,2, and 3.. missing extra 2 and we dont know anything about C. not sufficient

putting 1 and 2 together:

we do not know if A > B or vice versa.

2,3, and 4 would work (consec and 24 div by 12): yes

3,4, and 5 would also work (consec and 60 div by 12): no

therefore, both insufficient