An auctioneer raises the price of an item he is auctioning by $5 every time someone new bids on it. Two people enter a bidding war on a desk and the price goes from $15 to $65 before the desk is sold. How many times did each person bid on the desk?
The desk price was raised 65 - 15 = $
<gadget id="calculator">65-15</gadget>
<output>50</output>
50.
At $5 per bid, there were 50 / 5 = 
<gadget id="calculator">50/5</gadget>
<output>10</output>
10 bids on the desk.
There were two bidders, so each bid 10 / 2 = 
<gadget id="calculator">10/2</gadget>
<output>5</output>
5 times on the desk.

<result>5</result>