USA Bus Lines

What was the total cost of chartering the bus?

The cost of chartering a bus for the ski club's annual winter trip was split evenly by the 20 students planning to attend. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by $9.00 per person.

Public Comments

1. 30 x 9.00/person = $270.00
2. let the total money be x this was divided amongst 20 persons so everyones share is x/20 after 10 more chipped in the average share is x/30 now (x/20) - (x/30)=9 or (x/60)=9 or x=60*9=$540 therefore the expense is $540 not $270.
3. Let C = 20c C = 30(c - 9) 20c = 30c - 270 10c = 270 c = 27 C = 20*27 = $540.00