Q: Gwen received a $900 bonus at work and decided to invest this money in the stock market. She spent one-third of her bonus on stock A, one-third on stock B, and the remaining one-third on stock C.  After one year, stock A and stock B had doubled in value, while stock C had lost half of its value. At the end of the year, how much were Gwen's stocks worth, in dollars?
A: One - third of her bonus was $900 / 3 = $300. After one year, stock A doubled in value and was worth $300 * 2 = $600. After one year, stock B doubled in value and was worth $300 * 2 = $600. After one year, stock C had lost half its value and was worth $300 / 2 = $150. Altogether, at the end of the year, Gwen's stocks were worth $600 + $600 + $150 = $1350. The answer is 1350.
Question: Carla's brush is 12 inches long. If Carmen's brush is 50% longer than Carla's brush, how long is Carmen's brush in centimeters? (There are 2.5 centimeters per inch.)
Answer: First find the length of Carmen's brush in inches: 150% * 12 inches = 18 inches. Then convert the length from inches to centimeters: 18 inches * 2.5 centimeters / inch = 45 centimeters. The answer is 45.
[Question]John goes to the store and pays with a 20 dollar bill. He buys 3 sodas and gets $14 in change. How much did each soda cost?
[Answer]He paid 20 - 14 = $6. So each soda cost 6 / 3 = $2. The answer is 2.
Q: They say the first year of a dog's life equals 15 human years. The second year of a dog's life equals 9 human years and after that, every year of a dog's life equals 5 human years. According to this logic, how many human years has my 10-year-old dog lived?
A: If your dog is 10 years old then in his first year of life he lived 1 * 15 = 15 human years. In his second year of life, he lived 1 * 9 = 9 human years. We need to calculate his remaining years or 10 - 2 = 8 years of dog life into human years. If 1 year of dog life after the 2 years equates to 5 human years, then 8 years of dog life equals 8 * 5 = 40 human years. In total, your dog has lived 15 + 9 + 40 = 64 human years. The answer is 64.
Question: A cargo ship moving from Shanghai to Vancouver navigates for 21 days before reaching port. Customs and regulatory processes in Vancouver last 4 days. Finally, moving the cargo from the port to your rural warehouse takes some time and it always arrives on the seventh day. How many days ago should the ship have departed if your warehouse is expecting the shipment 2 days from today?
Answer: The total lead time for the cargo is 21 days on water + 4 in customs + 7 to the warehouse or 21 + 4 + 7 = 32 days. If the warehouse is expecting the cargo in 2 days from today then the cargo should have already completed 32 - 2 = 30 days of lead time. The answer is 30.
Q: Stefan goes to a restaurant to eat dinner with his family. They order an appetizer that costs $10 and 4 entrees that are $20 each. If they tip 20% of the total for the waiter, what is the total amount of money that they spend at the restaurant?
A:
The total cost of the entrees is 4 * $20 = $80. The total cost of the dinner is $80 + $10 = $90. The tip is $90 * 0.20 = $18. The total cost with tip is $90 + $18 = $108. The answer is 108.