Question

If n and k are positive integers, is n divisible by 6 ? (1) n = k(k + 1)(k 1) (2) k 1 is a multiple of 3.

Answer 1

Answer:

Step-by-step explanation:

For me A is insufficient because:

if n= k(k+1)(k-1)

we can get several cases, such as

k= 0

0*1*(-1) = -1 <-- not divisible by 6 = 0

k=1

1*2*0 = 0 <-- not divisible by 6

k=2

2*3*1 = 6 <--- divisible by 6

Hope it helps u mark as brainliest please