Duke was at a garage sale when he spotted DVDs on sale. They were separated by price into 2 different boxes. In the first box, he found 10 movies that he wanted. These were $2.00 apiece. The second box was marked $5 each and he found 5 movies he wanted. What was the average price of each of the DVDs he bought?
A step-by-step solution is:
3
In the first box he bought 10 DVDs at $2.

00 each, so he paid 10 * 2 = $20.

00.

In the second box he bought 5 DVDs at $5.

00 each, so he paid 5 * 5 = $25.

00.

He bought 10 + 5 = 15 DVDs.

He spent $20 + $25 = $45.

00.

The average price of each DVD is $45 / 15 = $3.

00 each.

.

So, the answer is 3