Question

A group of 72 students went on a field trip. The students traveled in vans, with an equal number of girls and boys in each van. If 42 boys went on the trip, how many vans where there?

A. 9

B. 8

C. 7

D. 6

Answer 1

GCD(42,30) = 6
so 7 boys and 5 girls in each van
72/12 = 6