Balls are sold in packages of 5 and you have $50. There is a special deal where you can buy a package of 5 balls for $7 and get 1 ball free. What is the maximum number of balls you can get?

Question

https://www.mathformoney.app/

Answer 1

For $49 you can get 7 packages of balls each costing $7, because 7 times $7=$49.

Each package bought entitles you to a free ball, so you get 7 free balls. There are 5 balls in a package, so you get 7×5=35 plus 7 free=42 balls. (And you have $1 change from $50.)