Question: Bob buys nose spray. He buys 10 of them for a "buy one get one free" promotion. They each cost $3. How much does he pay?
Answer: He got 10 / 2 = 5 paid. That means he paid 5 * 3 = $15. The answer is 15.
[Question]Charley bought 30 pencils. She lost 6 pencils while moving to school, and of course, also lost 1/3 of the remaining pencils because she wasn't very good at keeping track of pencils. How many pencils does she currently have?
[Answer]If Charley bought 30 pencils and lost 6 while moving, she remained with 30 - 6 = 24 pencils. Because she isn't good at keeping track of her pencils, Charley lost 1 / 3 * 24 = 8 more pencils. She currently has 24 - 8 = 16 pencils. The answer is 16.
Q: 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.)
A: 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: Two runners are competing in a 10-mile race. The first runs at an average pace of 8 minutes per mile, while the second runs at an average pace of 7 minutes per mile. After 56 minutes, the second runner stops for a drink of water. For how many minutes could the second runner remain stopped before the first runner catches up with him?
Answer: After 56 minutes, the second runner has traveled 56 / 7 = 8 miles. Similarly, the first runner has traveled 56 / 8 = 7 miles. Therefore, the two runners are 8 - 7 = 1 mile apart when the second runner stops. Thus, the second runner can stop for a maximum of 8 minutes, which is the amount of time it takes the first runner to travel 1 mile. The answer is 8.
[Question]Quinton is looking to add 4 fruit trees to his backyard. He wants to plant 2 apple trees that will be 10 feet wide each and need 12 feet between them. The peach trees will be closer to the house and will grow to be 12 feet wide and will need 15 feet between each tree. All told, how much space will these trees take up in his yard?
[Answer]Both apple trees will be 10 feet wide at maturity so they will be 2 * 10 = 20 feet wide. Quinton will need to leave 12 feet between these 2 trees so the apple trees will take up 20 + 12 = 32 feet. Both peach trees will be 12 feet wide at maturity so they will be 2 * 12 = 24 feet wide. Quinton will need to leave 15 feet between these 2 trees so the peach trees will take up 24 + 15 = 39 feet. Together, the apple trees will take up 32 feet and the peach trees will take up 39 feet so they will take 32 + 39 = 71 feet. The answer is 71.
[Question]At the park, Naomi saw people riding 7 regular bikes and 11 children's bikes. Regular bikes have 2 wheels and kid's bikes have 4 wheels. How many wheels did Naomi see at the park?
[Answer]
For the regular bikes, there are 7 x 2 = 14 wheels. For the children's bikes, there are 11 x 4 = 44 wheels. Altogether, Naomi saw 14 + 44 = 58 wheels. The answer is 58.