[Question]Jim buys a package of 20 car washes. Since He bought a package he only has to pay 60%. A carwash normally costs 15 dollars. How much did he pay for the package?
[Answer]He had to pay for 20 * .6 = 12 car washes. That means he had to pay 12 * 15 = $180. The answer is 180.
Q: James has 5 dozen boxes of matches. Each box contains 20 matches. How many matches does James have?
A: He has 5 * 12 = 60 boxes of matches. That means he has 60 * 20 = 1200 matches. The answer is 1200.
Question: An auto shop buys tires to replace all the tires on every customer’s car. They buy the tires as soon as cars are brought into the shop. There are four cars in the shop already, and another six customers come into the shop throughout the week. Some of the customers decide they don't want any of the tires changing, and two customers decide they only want half the tires changing. They had no tires in stock at the start of the week. If the shop has 20 tires left at the end of the week, how many customers decided they did not want their tires changing?
Answer: A total of 4 + 6 = 10 cars are in the shop throughout the week. This means the shop buys 10 cars * 4 tires = 40 tires. For each of the customers that only want half the tires changing, there are 4 tires * 0.5 = 2 tires left over. Two of the customers only want half the tires changing, so there are 2 tires * 2 cars = 4 tires left over from these customers. Out of the remaining tires, there are 20 – 4 = 16 tires left from customers who don't want their tires changing. So in total, there were 16 tires / 4 tires per customer = 4 customers who did not want their tires changing. The answer is 4.
[Question]John buys 30 ducks for $10 each. They weigh 4 pounds and he sells them for $5 per pound. How much profit did he make?
[Answer]He bought the ducks for 30 * 10 = $300. He sold each duck for 4 * 5 = $20. So he sold all the ducks for 30 * 20 = $600. So he made a profit of 600 - 300 = $300. The answer is 300.
Q: A 1165 cm long rope is cut into 154 pieces. 150 of the pieces are equally sized and the remaining pieces are 100mm each. Find the length of each of the equal pieces in millimeters.
A: Each cm contains 10mm so 1165cm is 1165 * 10 = 11650mm. 154 - 150 = 4 pieces of the rope are 100mm each in length. The 4 pieces have a total length of 4 * 100 = 400mm. There is a length of 11650 - 400 = 11250mm left. 11250 mm into 150 equal pieces will give each piece as 11250 / 150 = 75mm long. The answer is 75.
Question: Each year a store decreased the price of a certain model of TV by $35. If the price in 2001 was $1950, what was the price in 2009?
Answer:
The period the store had the TV was 2009 - 2001 = 8 years. The TV decreased by $35 / year * 8 years = $280. So the price in 2009 was $1950 - $280 = $1670. The answer is 1670.