Q: Andy is checking to see if all the cars in the parking lot paid for their parking. 75% of the cars have valid tickets, and 1/5th that number have permanent parking passes. If there are 300 cars in the parking lot, how many people tried to park in the lot without paying?
A: First find how many cars have valid tickets: 75% * 300 cars = 225 cars. Then find the percentage of cars with parking passes: 75% / 5 = 15%. Then multiply that number by the total number of cars to find the number with parking passes: 15% * 300 cars = 45 cars. Then subtract all the cars with valid forms of parking to find the number parked illegally: 300 cars - 225 cars - 45 cars = 30 cars. The answer is 30.
Question: Steve has a bank account that earns 10% interest every year. He puts $100 in it, and then 10 each year. How much money is in it after two years?
Answer: After one year it earns $10 in interest because 100 x .1 = 10. It has $120 in it after a year because 100 + 10 + 10 = 120. In the second year it earns $12 in interest because 120 x .1 = 12. In the second year it has $142 in it because 120 + 12 + 10 = 142. The answer is 142.
[Question]The Kwik-e-Tax Center charges $50 for a federal return, $30 for a state return, and $80 for quarterly business taxes. If they sell 60 federal returns, 20 state returns, and 10 quarterly returns in one day, what was their total revenue for the day?
[Answer]First find the total income from the federal returns: $50 / return * 60 returns = $3000. Then find the total income from the state returns: $30 / return * 20 returns = $600. Then find the total income from the quarterly returns: $80 / return * 10 returns = $800. Then add the income from each source to find their total income: $3000 + $600 + $800 = $4400. The answer is 4400.
Q: Natalie has $26 to go shopping. She bought a jumper for $9, a T-shirt for $4, and a pair of heels for $5. How much money does Natalie have left?
A: The total cost of the clothes is $9 + $4 + $5 = $18. Natalie has $26 − $18 = $8 left. The answer is 8.
Question: A rectangular plot of private property is fenced in by a chain-link fence. The long sides of the plot are three times the length of the short sides. One short side of the fence is rusted from being hit by a sprinkler and needs to be replaced. If all the sides of the fence together are 640 feet long, how many feet of fence need to be replaced?
Answer: Let S be the length of the short side of the fence. Thus, the length of a long side of the fence is 3S. There are 2 of each side, so the whole fence is 2S + 2 * 3S = 2S + 6S = 8S long. The whole fence is 8S = 640 feet long. Thus, the short side of the fence that needs to be replaced is S = 640 / 8 = 80 feet long. The answer is 80.
Q: Sue is traveling from New York to San Francisco, 16 hours later after landing in New York from New Orleans. If the journey from New Orleans to New York took 3/4 times as much time as she takes to travel from New York to San Francisco, and she lands in San Francisco 24 hours later after departing from New York, calculate the total time she took to reach San Francisco from New Orleans?
A:
To travel from New Orleans to New York, Sue took 3 / 4 * 24 hours = 18 hours. If she stayed in New York for 16 hours, Sue's total time to travel from New Orleans to San Francisco is: 18 hours from New Orleans to New York + 16 hours in New York + 24 hours from New York to San Francisco = 58 hours. The answer is 58.