Question

Paul bought a student discount card for the buss. The card allows him to buy daily bus passes for $1.5. After one month, Paul bought 15 passes and spent a total of $29.50. How much did he spend on the student discount card

Answer 1

29.5-(1.5x15)
= $7

Hence: he spent $7 on the student discount card.

I subtracted the amount he spent on 15 passes with the discount card from the total amount he spent to find the amount he spent on the discount card:)