Question 41627
A club is going on a bus trip to NYC to see a Broadway play. The cost per person (C SAY )for the bus rental varies inversely as the number of people going ( N SAY) on the trip. It will cost $31 per person if 50 people go on the trip. How much will it cost per person if 81 people go on the trip? 
C IS INVERSELY PROPORTIONAL TO N
HENCE C=K/N...........C=31 AT N=50..SO...
31=K/50....K=31*50=1550
N=81...C=?
C=1550/81=19.14