She watches 30 minutes of tv per night, 5 days a week so that's 30 * 5 = 150 minutes of tv. She watches 2 hours of tv on the weekends and 60 minutes are in 1 hour so that's 2 * 60 = 120 minutes of tv. All total she watches 150 + 120 = 270 minutes of tv per week. There are 52 weeks in a year and she watches 270 minutes per week so that's 52 * 270 = 14,040 minutes of tv per year. She watches 14,040 minutes of tv and 60 minutes are in an hour so she watches 14040 / 60 = 234 hours.
The answer: 234
Reverse engineering the question: Flynn watches 30 minutes of tv every night during the weekdays. On the weekends, she watches an additional 2 hours of TV in total. How many hours of tv does she watch in 52 weeks?
Reasoning and answer: Emma had $2000 - $400 = $1600 left after buying furniture. Emma gave Anna 3 / 4 * $1600 = $1200. So, Emma is left with $1600 - $1200 = $400.
The answer: 400
What was the question?
Question: Emma got $2000 from the bank. She bought $400 of furniture and gave 3/4 of the rest to her friend Anna. How much is left with Emma?
First, find the total number of points Carl needs to earn across all the tests by multiplying his desired average by the number of tests: 85 * 4 = 340 marks. Then subtract all Carl's previous test scores to find the last score he needs to earn: 340 - 80 - 75 - 90 = 95 marks.
The answer: 95
Reverse engineering the question: Carl is taking a class where the whole grade is based on four tests that are graded out of 100. He got an 80, a 75 and a 90 on his first three tests. If he wants an 85 average for the class, what is the minimum grade he needs to get on his last test?
Reasoning and answer: First find the total number of people by adding the number of passengers and flight crew: 30 people + 5 people = 35 people. Then find the total number of bags by doubling the total number of people: 35 people * 2 bags / person = 70 bags. Then find the fuel increase caused by the people by multiplying their number by the fuel increase per person: 35 people * 3 gallons / mile / person = 105 gallons / mile. Then multiply the number of bags by the fuel increase per bag to find the total fuel increase they cause: 70 bags * 2 gallons / mile / bag = 140 gallons / mile. Now add the fuel increases to the base fuel consumption to find the total fuel needed per mile: 140 gallons / mile + 105 gallons / mile + 20 gallons / mile = 265 gallons / mile. Now multiply the fuel consumption per mile by the number of miles flown to find the total amount of fuel needed: 265 gallons / mile * 400 miles = 106,000 gallons of fuel.
The answer: 106000
What was the question?
Question: Carol is an aviation engineer deciding how much fuel to put in a jet. The empty plane needs 20 gallons of fuel per mile. Each person on the plane increases this amount by 3 gallons per mile, and each bag increases it by 2 gallons per mile. If there are 30 passengers and 5 flight crew, and each person brought two bags, how many gallons of fuel does the plane need for a 400-mile trip?
The total cost for roses is 20 * 5 = $100. Nadia bought 3 / 4 * 20 = 15 lilies. Each lily costs 5 * 2 = $10. She used 10 * 15 = $150 in total to buy lilies. To buy all the flowers, Nadia used 150 + 100 = $250.
The answer: 250
Reverse engineering the question: Nadia was sent to the flower shop to buy 20 roses and 3/4 times as many Lillies as roses. If roses cost $5 each and lilies cost twice as much each, calculate the total amount of money Nadia used to buy the flowers.
7 leaves fell in the first hour. 4 leaves fell in the second hour. 4 leaves fell in the third hour. The total number of leaves that fell during the 3 hours is 7 + 4 + 4 = 15 leaves. The average number of leaves that fell per hour is 15 leaves / 3 hours = 5 leaves per hour.
The answer: 5
Reverse engineering the question:
Rylee is bored and decides to count the number of leaves falling off the tree in her backyard. 7 leaves fall in the first hour. For the second and third hour, the leaves fall at a rate of 4 per hour. What is the average number of leaves which fell per hour?