In this question, we're trying to find how many bikes were there.
We know that they bought them for $4,000
We also know that they sold them for $6,200
Lets find how much profit they made:
Subtract 6200 by 4000 to find how much profit was made
6200 - 4000 = 2200
The dealer made $2,200 in profit
Now, since we know that they made $50 from each bike, we would divide 2200 by 50 to get our answer.
2200 ÷ 50 = 44
This means that there were 44 bicycles.
Answer:
44 bicycles