Question

It costs $30 to buy 2 tickets, $60 to buy 4 tickets, and $120 to buy 8 tickets, what is the cost of 7 tickets?

Answer 1

First calculate the cost of 1 ticket which is 30 ÷ 2 = 15 then multiply the answer by the number of tickets (7) so 15 × 7 = 105.

The cost of 7 tickets is $105.