[Question]Chuck can ride the merry-go-round 5 times longer than Dave who can only ride it for 10 minutes before getting sick. Erica can stay on the merry-go-round 30% longer than Chuck before getting sick. How long can Erica stay on the merry-go-round?
[Answer]Dave can ride the merry - go - round for 10 minutes and Chuck can ride 5 times longer than Dave so he can ride for 10 * 5 = 50 minutes. Erica can stay on 30% longer than Chuck who can ride for 50 minutes so that's an extra .30 * 50 = 15 minutes. Chuck can ride for 50 minutes and Erica can ride an extra 15 minutes for a total of 50 + 15 = 65 minutes. The answer is 65.
Q: Five adults and two children go to see a movie and buy $12 worth of concessions. The total cost of their trip is $76. If each child's ticket is $7, how much, in dollars, are the adult tickets?
A: First take out the cost of the concessions. That leaves $76 - $12 = $64 for the movie tickets. Each child ticket costs $7, so two children's tickets cost $7 per child ticket * 2 child tickets = $14. To find the amount spent on adult tickets, subtract the cost of the children's tickets to get $64 - $14 = $50 for adult tickets. Divide $50 for adult tickets / 5 adults = $10 per adult ticket. The answer is 10.
Question: On a tough week, Haji's mother sells goods worth $800, which is half the amount she sells on a good week. What's the total amount of money she makes if she has 5 good weeks and 3 tough weeks?
Answer: If on a tough week she sells half what she sells on a good week, then on a good week she sells 800 * 2 = 1600 dollars. If she had 5 good weeks, the amount is 5 * 1600 = 8000 dollars. During the 3 tough weeks, she sells 3 * 800 = 2400 dollars. The total amount she sold in both weeks is 2400 + 8000 = 10400 dollars. The answer is 10400.
[Question]Lisa bought a new iPhone for $1000. She bought a phone contract that costs $200/month, a case that costs 20% of the cost of the phone, and headphones that cost half as much as the case. How much will Lisa spend on her phone in the first year?
[Answer]First find the cost of the case: $1000 * 20% = $200. Then find the cost of the headphones: $200 / 2 = $100. Then find how much the phone contract will cost over a year: $200 / month * 12 months / year = $2400. Finally, add the cost of the phone, accessories, and plan over the first year to find the total: $2400 + $100 + $200 + $1000 = $3700. The answer is 3700.
Q: The sum of the three sides of a triangle is 50. The right side of the triangle is 2 cm longer than the left side. Find the value of the triangle base if the left side has a value of 12 cm.
A: If the left side of the triangle is 12, and the right side is 2 cm longer, the right side is 12 + 2 = 14 cm long. The sum of the left and right sides of the triangle is 14 + 12 = 26 cm. If the sum of all sides of the is 50, and the left and right sides of the triangle are 26, the triangle base is 50 - 26 = 24 cm. The answer is 24.
Question: Jocelyn bought a car 3 years ago at $4000. If the car's value has reduced by 30%, calculate the current value of the car.
Answer:
If Jocelyn bought the car 3 years ago at $4000, the car's value has reduced by 30 / 100 * $4000 = $1200. The current value of the car is $4000 - $1200 = $2800. The answer is 2800.