Question: Jade and Krista went on a road trip for 3 days. On each day Jade had to drive 8 hours and Krista had to drive 6 hours to arrive at the destination. How many hours did they drive altogether?
Answer: Jade drives for a total of 3 days x 8 hours / day = 24 hours. Krista drives for a total of 3 days x 6 hours / day = 18 hours. Together they drive 24 hours + 18 hours = 42 hours. The answer is 42.
[Question]Juanita enters a drumming contest. It costs $10 to enter. She has 2 minutes to hit as many drums as she can. If she hits 200 drums, she can start to make money, equal to 2.5 cents for every drum hit. How many drums does she hit if she lost $7.5 for joining the contest?
[Answer]She made $2.5 from hitting drums because 10 - 7.5 = 2.5. She hit 200 drums to start making money. She hit 100 drums in order to make the $2.5 because 2.5 / .025 = 100. She hit 300 drums in total because 100 + 200 = 300. The answer is 300.
Q: The last time Bob cut his hair he cut it to 6 inches. His hair is now 36 inches long. If hair grows at a rate of .5 inches per month how many years did it take him to grow out his hair?
A: His hair grew 36 inches - 6 inches = 30 inches. Hair grows at a rate of 12 months / year * 0.5 inches / month = 6 inches / year. It took him 30 inches / 6 inches / year = 5 years to grow his hair out. The answer is 5.
Question: Alex is on a cross-country bike trip. After starting this morning, he manages an average speed over flat ground of about 20 miles per hour. Four and a half hours later, the road started to incline upwards enough that he could only manage 12 miles per hour. Two and a half hours later, though, the road declined downhill and was able to mostly coast at 24 miles per hour. Unfortunately, he only got to enjoy this for one and a half hours before he punctured a tire. He had forgotten to pack a repair kit, so he had to walk his bike the rest of the way to the next town. If the next town was 164 miles from where he started this morning, how far did Alex have to walk?
Answer: Alex traveled at 20 miles per hour for 4.5 hours, so 20 * 4.5 = 90 miles on flat ground. He traveled 12 miles per hour uphill for 2.5 hours, so 12 * 2.5 = 30 miles uphill. He traveled downhill 24 miles per hour for 1.5 hours = 24 * 1.5 = 36 miles downhill. Before his tire punctured, he traveled 90 + 30 + 36 = 156 miles. So as the next town is 164 miles from where he began, Alex had to walk for 164 - 156 = 8 miles. The answer is 8.
[Question]Jimmy is at the candy store and buys 2 candy bars for $.75 each. He then buys 4 lollipops that cost $.25 each. He spent 1/6 of the money he earned from shoveling snow. If he charges $1.5 per driveway, how many driveways did he shovel?
[Answer]Jimmy spent $1.5 on candy bars because 2 x .75 = 1.5. He spent $1 on lollipops because 4 x .25 = 1. He spent $2.5 in total because 1.5 + 1 = 2.5. He earned $15 shoveling driveways because 2.5 / (1 / 6) = 15. He shoveled 10 driveways because 15 / 1.5 = 10. The answer is 10.
[Question]Zoe wants to go on the field trip to Washington DC with her middle school this spring and the cost is $485. Her grandma gave her $250 toward her fees and she must earn the rest by selling candy bars. She makes $1.25 for every candy bar she sells. How many candy bars does Zoe need to sell to earn the money for the trip?
[Answer]
Since Zoe’s grandma gave her some money toward her trip, she needs to come up with $485 – $250 = $235. This means she must sell $235 / $1.25 / candy bar = 188 candy bars. The answer is 188.