Question

for a field trip, 4 chaperones and needed for every 18 students. How many chaperones are needed if there are 81 students on the trip?

Answer 1

# 4 per 18 students so
4/18 = .22 halves of a chaperon per student. lol
81 x .22 = 17.82 chaperons or in reality 18 chaperons.