Example Question - tennis balls price

Calculating Cost per Can of Tennis Balls

To find out how much one can of tennis balls costs, we need to know the total amount spent by Luis and then divide that by the number of cans he bought. Luis had $20 and got $8 back as change. This means he spent $20 - $8 = $12 on 4 cans of tennis balls. Now, we divide the total cost by the number of cans to find the cost per can: $12 ÷ 4 = $3 per can. Therefore, one can of tennis balls costs $3.