Question: In a parking lot, there are cars and motorcycles. Each car has 5 wheels (including one spare) and each motorcycle has 2 wheels. There are 19 cars in the parking lot. Altogether all vehicles have 117 wheels. How many motorcycles are at the parking lot?
Answer: There are 19 cars at the lot, so there are 5 * 19 = 95 wheels of cars. So there are 117 - 95 = 22 wheels of motorcycles in the parking lot. Each motorcycle has 2 wheels, so that leaves us with 22 / 2 = 11 motorcycles in the parking lot. The answer is 11.
[Question]Amelia has laundry to do. She has a load of whites that will take 72 minutes in the washing machine and 50 minutes in the dryer. She has a load of darks that will take 58 minutes in the washing machine and 65 minutes in the dryer. She has a load of colors that will take 45 minutes in the washer and 54 minutes in the dryer. If she does one load at a time, how long will it take her to wash and dry all three loads, in minutes?
[Answer]It will take her 72 minutes in the washer + 50 minutes in the dryer = 122 minutes for the whites. It will take her 58 minutes in the washer + 65 minutes in the dryer = 123 minutes for the darks. It will take her 45 minutes in the washer + 54 minutes in the dryer = 99 minutes for the colors. Altogether, it will take 122 minutes for whites + 123 minutes for darks + 99 minutes for colors = 344 minutes to do the laundry. The answer is 344.
Q: During a fundraiser, each of the 20 members of a group sold candy bars which costs $0.50 each. If each member sold an average of 8 candy bars, how much money did they earn from their candy bars sales, in dollars?
A: The group was able to sell 20 x 8 = 160 candy bars. So, they got 160 x $0.5 = $80 from their candy bars sales. The answer is 80.
Question: Bridge and Sarah have $3 between them. If Bridget has 50 cents more than Sarah, how many cents does Sarah have?
Answer: Let X be the amount of money Sarah has, so Bridget has X + 50 cents. We know that Sarah and Bridget combined have $3, or 300 cents, so X + X + 50 = 300. We therefore know that 2X = 250. So Sarah has 250 / 2 = 125 cents. The answer is 125.
[Question]John has 3 children. He and his wife are supposed to buy notebooks for their sons but they couldn't agree on how many to buy. So John bought 2 notebooks for each of his children and John's wife bought 5 notebooks for each of them. How many notebooks did they buy in total for their children?
[Answer]John bought 2 notebooks for his 3 children: 2 notebooks / child x 3 children = 6 notebooks. The father bought 6 notebooks. John's wife bought 5 notebooks for their three children: 5 notebooks / child x 3 children = 15 notebooks. The mother bought 15 notebooks. Now, the total number of notebooks is 6 notebooks + 15 notebooks = 21 notebooks. The answer is 21.
[Question]Elmo has 3 times as many books as his sister, Laura. Laura has twice as many books as her brother, Stu. If Elmo has 24 books, how many books does Stu have?
[Answer]
Laura has 24 / 3 = 8 books. Stu has 8 / 2 = 4 books. The answer is 4.