1) 8k is div. by 16
2) 9k is div. by 12
tks guys.
i know the answer is B, but i forgot how i got there.
2) 9k is div. by 12
tks guys.
i know the answer is B, but i forgot how i got there.
1)Let k = 2
2)9 * k is divisible by 12 implies 9*k is divisible by 4 and 3. That means the factor 4 must come from 9 or k or parts of them combined (2 * 2). In this case the factor 4 must be from k. Then k is divisible by 4
