Question: A survey conducted by the school showed that only 20% of the 800 parents agree to a tuition fee increase. How many parents disagree with the tuition fee increase?
Answer: There were 800 x 20 / 100 = 160 parents who agreed to the tuition fee increase. So, there were 800 - 160 = 640 parents who disagreed. The answer is 640.
[Question]Lily is going abroad on vacation with her family. Each of her 4 siblings is bringing 2 suitcases, and her parents are bringing 3 suitcases. Lily decides that there is already too much luggage and she won't be bringing any. How many suitcases is the entire family bringing on vacation?
[Answer]Her siblings have brought a total of 4 siblings * 2 suitcases each = 8 suitcases. Her parents have brought 2 parents * 3 suitcases each = 6 suitcases. This is a total of 8 + 6 = 14 suitcases. The answer is 14.
Q: Kevin holds the world record for eating the biggest quantity of hot wings in 8 minutes. He can eat 64 wings without stopping. Alan, a boy who loves hot wings, wants to beat Kevin's record. He is currently able to eat 5 hot wings per minute. How many more wings must he eat per minute to beat Kevin's record?
A: Knowing Kevin's record of eating 70 wings in 8 minutes or 64 / 8 = 8 wings in a minute. Alan must increase his ability to eat 5 wings per minute to 8 - 5 = 3 wings per minute to equal Kevin's world record. To beat Kevin, Alan must eat 3 + 1 = 4 hot wings per minute. The answer is 4.
Question: Irene earns $500 if she works for 40 hours a week and gets an extra $20 for every hour of overtime. If she worked 50 hours last week, calculate her total income.
Answer: If Irene worked 50 hours last week, the total number of hours counting as overtime is 50 - 40 = 10 hours. Since she's given $20 for every hour of overtime, she earned 10 * $20 = $200 in overtime. Her total income, including the overtime, is $500 + $200 = $700. The answer is 700.
[Question]A used car lot has 24 cars and motorcycles (in total) for sale. A third of the vehicles are motorcycles, and a quarter of the cars have a spare tire included. How many tires are on the used car lot’s vehicles in all?
[Answer]The used car lot has 24 / 3 = 8 motorcycles with 2 tires each. The lot has 24 - 8 = 16 cars for sale. There are 16 / 4 = 4 cars with a spare tire with 5 tires each. The lot has 16 - 4 = 12 cars with 4 tires each. Thus, the used car lot’s vehicles have 8 * 2 + 4 * 5 + 12 * 4 = 16 + 20 + 48 = 84 tires in all. The answer is 84.
[Question]During the most recent voyage of the Starship Conundrum, the spacecraft traveled from Planet X to Planet Y in eight hours less than twice the number of hours in a typical earth day. If the distance between these two planets is 4,000 parsecs, what was the average speed, in parsecs per hour, of the Starship Conundrum during this most recent voyage?
[Answer]
Twice the number of hours in a typical earth day is 24 * 2 = 48 hours. Eight hours less than twice the number of hours in a typical earth day is 48 - 8 = 40 hours. If the distance between these two planets is 4,000 parsecs, then the average speed on this voyage was 4000 / 40 = 100 parsecs per hour. The answer is 100.