Number N is randomly selected from a set of all primes between 10 and 40, inclusive. Number G is selected from a set of all multiples of 5 between 10 and 40 inclusive. What is the probability that N+G is odd?	Choose the correct option:
A) 1/2
B) 2/3
C) 3/4
D) 4/7
E) 5/8
All primes except 2 are odd, thus N must be odd. For N + G = odd + G to be odd, G must be even.   There are 7 multiples of 5 between 10 and 40, inclusive: 10, 15, 20, 25, 30, 35, and 40. Out of them 3 (15, 25, and 35) are odd.   Therefore the probability that N + G is odd is 4/7.   Answer: 4/7.
<result>D</result>
Number N is randomly selected from a set of all primes between 10 and 40, inclusive. Number G is selected from a set of all multiples of 5 between 10 and 40 inclusive. What is the probability that N+G is odd?