if b is the product of three consecutive positive integers c, c+1, c+2, is b a multiple of 24?
1. b is a multiple of 3
2. c is odd
OA:A
plz explain.
1. b is a multiple of 3
2. c is odd
OA:A
plz explain.
Deepa,
I think the OA is wrong. With options as is the answer is E)
To prove if 24 * k(some integer) = b
Stmt I
b = 1 2 3
b is not a multiple of 24
b= 2 3 4
Yes b is a multiple of 24
INSUFF
Stmt II
c is odd
b = 3 4 5
b is not a multiple of 24
b = 23 24 25
b is a multiple of 24
Stmt I and II together
b = 1 2 3
NO
b = 23 24 25
YES
insuff
Stmt I is infact reduntant since the product of n conseuctove integers is divisible by n!
So we know b is divisible by 6 therefore definitely divisible by 3
I would check the source!
