Please answer the following question by reasoning step-by-step.
Jim buys a package of 20 car washes. Since He bought a package he only has to pay 60%. A carwash normally costs 15 dollars. How much did he pay for the package?

180
He had to pay for 20 *.

6 = 12 car washes.

That means he had to pay 12 * 15 = $180.

.

Thus, the answer is 180