grandh01 wrote:If b is the product of three
consecutive positive integers c, c + 1,
and c + 2, is b a multiple of 24 ?
(1) b is a multiple of 3,
(2) c is odd.
OA is A
We can do this by Picking numbers approach.
(1) b is a multiple of 3.
If c = 1, b = 6, here b is not a multiple of 24.
If c = 2, b = 24, here b is a multiple of 24.
No definite answer; NOT sufficient.
(2) c is odd.
If c = 1, b = 6, here b is not a multiple of 24.
If c = 7, b = 504, here b is a multiple of 24.
No definite answer; NOT sufficient.
Combining (1) and (2), c is odd and b is a multiple of 3. Here we can take the same examples as in statement 2.
If c = 1, b = 6, here b is not a multiple of 24.
If c = 7, b = 504, here b is a multiple of 24.
No definite answer; NOT sufficient.
The correct answer is E.
