Question: Antoinette weighs 7 less kilograms than twice Rupert's weight. Together they weigh 98 kilograms. How many kilograms does Antoinette weigh?
Answer: Let R = Rupert's weight. Antoinette = 2R - 7. R + 2R - 7 = 98. 3R = 105. Rupert = 35 kg. Antoinette = 2 * 35 - 7 = 63 kg. Antoinette weighs 63 kilograms. The answer is 63.
[Question]At a certain bookstore, the best-selling book, "TOP," costs $8. The least-selling book, "ABC," costs $23. Thirteen "TOP" books and four "ABC" books were sold last week. What is the difference in the bookstore's earnings on these two books last week?
[Answer]On "TOP" books the bookstore made 13 * 8 = $104. The "ABC" books, on the other hand, were sold for a total of 4 * 23 = $92. The difference between earnings from these two books is 104 - 92 = $12. The answer is 12.
Q: Jolene and Phil have four children, each with the same birthday. They gave birth to their first child exactly 15 years ago. They gave birth to their second child exactly one year after the birth of their first child. They gave birth to their third child on the fourth birthday of their second child. Two years after the birth of their third child, they gave birth to their fourth child. How old, in years, is their fourth child?
A: Their 1st child was born 15 years ago, and therefore is 15 years old. Their 2nd child was born 1 year after their 15 - year - old child, and therefore is 15 - 1 = 14 years old. Their 3rd child was born 4 years after their 14 - year - old child, and therefore is 14 - 4 = 10 years old. Their 4th child was born 2 years after their 10 - year - old child, and therefore is 10 - 2 = 8 years old. The answer is 8.
Question: If Mr. Jones has 6 shirts for every pair of pants, and he has 40 pants, what's the total number of pieces of clothes he owns if all other factors remain the same?
Answer: If Mr. Jones has 6 shirts for every pair of pants, and he has 40 pants, the total number of shirts he has is 6 * 40 = 240. The total number of pieces of clothes he owns is 240 + 40 = 280. The answer is 280.
[Question]Grace is filling her pool in the backyard with a hose that sprays 50 gallons/hour. She waited for 3 hours but the pool wasn't full, so she decides to add another hose that sprays 70 gallons/hour, and after 2 more hours the pool is full. How much water can Grace's pool contain?
[Answer]In the first 3 hours the pool gets 50 gallons / hour x 3 hours = 150 gallons. With the addition of the other hose, the pool was filling with a rate of 50 gallons / hour + 70 gallons / hour = 120 gallons / hour. In the next 2 hours with both hoses the pool gets 120 gallons / hour x 2 hours = 240 gallons. The pool's total capacity is 240 gallons + 150 gallons = 390 gallons. The answer is 390.
[Question]Ten adults went to a ball game with eleven children. Adult tickets are $8 each and the total bill was $124. How many dollars is one child's ticket?
[Answer]
Adults = 10 * 8 = $80. Children = 124 - 80 = $44. Child = 44 / 11 = $4. Each child's ticket is $4. The answer is 4.