Problema Solution
Individual tickets to a raffle cost 35 cents. A pair of consecutively numbered tickets may be bought for 50 cents. If 100 tickets were sold and $32.20 was collected, how many people purchased pairs of consecutively numbered tickets?
Answer provided by our tutors
let
x = the number of individual tickets
y = the number of pairs of consecutively numbered tickets
x + 2y = 100
0.35x + 0.50y = 32.20
by solving the above system of equations we find
x = 72 individual tickets
y = 14 pairs of consecutive tickets
click here to see the step by step solution of the system of equations
there were 14 pairs of consecutive tickets purchased or 14*2=28 consecutively numbered tickets.