Originally Posted by

**harpazo** A dealer originally bought 100 identical batteries at a total cost of q dollars. If each battery was sold at 50 percent above the original cost per battery, then, in terms of q, for how many dollars was each battery sold?

My Effort:

A dealer originally bought 100 identical batteries at a total cost of q dollars.

(q/100)

If each battery was sold at 50 percent above the original cost per battery, then, in terms of q, for how many dollars was each battery sold?

(q/100) + 50 is my answer.

The book's answer is (3q/200).

Where did 3 and 200 come from?