Paul is selling is paintings at the town square. He has 36 paintings to sell in all and needs to sell 17 in one day to recover h
is cost. He already sold 3 paintings since the morning and has 5 more hours to sell his paintings. Paul wants to know how many paintings he should sell per hour to recover his cost
He has already sold 3 paintings and has 14 left. To find this out, you have to divide 14 by 5 which is 2.8. 2.8 rounded up is 3. Then you multiply 3x5+3 which is 18. If he sells 3 paintings per hour, he will end up having sold 18 at the end of the day.
If we know that 6 things cost 2.99 and we want to know unit price we just have to divide 2.99 by 6. So 2.99:6=0.49$ - its the result. Now we can say that his sister is not correct, because price is different that 2$/unit.
