If n is a positive integer and r is the remainder when 4+7n is divided by 3, what is the value of r?
(1) n+1 is divisible by 3
(2) n>20
I think the answer is A....
But can someone make sense of this prob...
Thanks...
(1) n+1 is divisible by 3
(2) n>20
I think the answer is A....
But can someone make sense of this prob...
Thanks...












