Q: A set of 7 spoons costs $21. If each spoon would be sold separately, how much would 5 spoons cost?
A: A set of 7 spoons costs $21, so one spoon from the set costs 21 / 7 = $3. So if sold separately, 5 spoons would cost 5 * 3 = $15. The answer is 15.
Question: The Dow Jones Industrial Average fell 2% today. The Dow ended the day at 8,722. What was the Dow in the morning before the markets opened?
Answer: Today the Dow was down 8722 / 98 * 2 = 178. So it started at 8722 + 178 = 8900. The answer is 8900.
[Question]Matt can buy key chains in packs of 10 for $20 or in packs of 4 for $12. How much money can he save if he chooses to buy 20 key chains at a lower price?
[Answer]The cost of each key chain in packs of 10 for $20 is $20 / 10 = $2. The cost of each key chain in packs of 4 for $12 is $12 / 4 = $3. There is a price difference of $3 - $2 = $1 per key chain between the two choices. By buying 20 key chains at a lower price, Matt can save 20x$1 = $20. The answer is 20.
Q: If 12 bags of oranges weigh 24 pounds, how much do 8 bags weigh?
A: Each bag of oranges weighs 24 pounds / 12 = 2 pounds. 8 bags of oranges would weigh 8 * 2 pounds = 16 pounds. The answer is 16.
Question: Sam and Drew have a combined age of 54. Sam is half of Drew's age. How old is Sam?
Answer: Let x be Drew's age. Sam is (1 / 2)x. x + (1 / 2)x = 54. (3 / 2)x = 54. 3x = 108. x = 36. Sam is 36 / 2 = 18 years old. The answer is 18.
Q: One white rhino weighs 5100 pounds and one black rhino weighs 1 ton. How many pounds would 7 white rhinos and 8 black rhinos weigh in total?
A:
5100 * 7 = 35,700 pounds. 1 ton = 2000 pounds. 8 * 2000 = 16000 pounds. 35,700 + 16,000 = 51,700. Seven white rhinos and 8 black rhinos would weigh 51,700 pounds. The answer is 51700.