Question

Sebastian needed to buy new tires for his car. The tire shop was running a holiday deal that allowed customers to buy three tires and get the fourth tire for $5. If the total price for all his tires was $237.50, what was the cost of each of the first three tires?

Answer 1

Let the price of each of the first three tires be p. Then 3p + 5 = 237.50.
So 3p = 232.50 and p = 232.50 / 3 = 77.50.

Each of the first three tires cost $77.50.