24. 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.
Hi,
I thought the answer is E) but actually the answer is A) --- Can anyone please explain??
500 ds test11 #24
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I'm not sure how it can be A.dunkin77 wrote:24. 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.
Hi,
I thought the answer is E) but actually the answer is A) --- Can anyone please explain??
Take 3*4*5 - clearly not a multiple of 24.
Take 23*24*25 - clearly a multiple of 24
So, insufficient.
Actually 1 doesn't tell us anything that we already don't know.
Product of 3 consecutive positive integers HAS to be a multiple of 3
3*4*5, 4*5*6, 5*6*7 etc. are all multiples of 3.