Question

School guidelines require that there must be at least 2 chaperones for every 25 students going on a school trip. How many chaperones must there be for 80 students?
A: 6 chaperones
B: 40 chaperones
C: 3 chaperones
D: 7 chaperones

Answer 1

the answer is D. 7 Chaperones

Answer 2

ratio and proprtion

chaperones/students=2/25

2/25=?/80

multiply both sides by 80 to find ?

160/25=?

6.4=?

you can't have 0.4 chaperones and 6 chaperones is too little

so the answer is 7 chaperones

answer is D