Question

If a positive integer n, divided by 5 has a remainder 2, which of the following must be true?


I n is odd
II n + 1 cannot be a prime number
III (n + 2) divided by 7 has remainder 2


A. none
B. I only
C. I and II only
D. II and III only
E. I, II and III

Answer 1

http://gmatclub.com/forum/if-a-positive-integer-n-divided-by-5-has-a-remainder-149506.html

Answer 2

e