Question

Luis has 20$. He can buy 4 cans tennis balls and get 8 dollers back. How much did each tennis ball can cost?

Answer 1

Answer: $3

Step-by-step explanation:

Given

Luis has $20

He can buy 4 tennis balls and get $8 dollar back

Money spent on balls $20-8=\ 12$

i.e. 4 tennis balls cost $\ 12$

1 tennis ball costs $\dfrac{12}{4}=\ 3$

Each tennis ball costs $3.