Reasoning and answer: Every week Carl needs to drive additional 6 hours, so in two weeks that would make 2 * 6 = 12 additional hours. Two weeks of driving 2 hours every day, means 14 * 2 = 28 hours of driving. So during two weeks, Carl will drive 28 + 12 = 40 hours.
The answer: 40
What was the question?
Question: To make a living, Carl needs to drive a car for 2 hours every day. After he got promoted he needs to drive for 6 more hours every week. How many hours will Carl drive in two weeks?
Marco has 500 * 0.25 = 125 duplicate trading cards. He wants to trade off 125 * 0.2 = 25 cards for new ones.
The answer: 25
Reverse engineering the question: Marco loves trading cards. He has a total of 500 cards on hand, and a fourth of them are duplicates. Marco decides to trade one-fifth of these duplicates for completely new cards to his friend Josh. How many new cards did Marco get?
Reasoning and answer: First, the number of segments in the 2 millipedes that are twice as long is 60 segments * 2 = 120 segments. Then one can multiply the segments by the 2 millipedes to find the total number of segments: 120 segments / millipede * 2 millipedes = 240 segments. In total, we then find the scorpion has eaten one 60 - segment millipede in addition to the 3 millipedes above for a total of 60 + 240 = 300 segments. So, the number of segments it still needs to eat are : 800 segments - 300 segments = 500 segments. Thus, it needs to eat an additional 500 segments / 50 segments / millipede = 10 millipedes.
The answer: 10
What was the question?
Question: A blind cave scorpion survives by catching millipedes. It needs to eat lots of millipedes to survive: a total of 800 body segments every day. If it's already eaten one millipede with 60 segments and 2 millipedes that are twice as long, how many 50-segment millipedes does it need to eat to reach its daily total?
The have run 12 laps because 6 + 6 = 12. They have run 1,800 meters because 12 x 150 = 1,800. They have 600 more meters to run because 2,400 - 1,800 = 600. The have to run 4 more laps because 600 / 150 = 4.
The answer: 4
Reverse engineering the question: Madison and Gigi have to run a total of 2400 meters in gym class. The track is 150 meters around. If they each have run 6 laps, how many more laps do they have to run before they reach 2400 meters?
Reasoning and answer: Let X be the number of students in the middle school. We know that X * 20% = 168 students are in the band. So there are X = 168 / 20% = 840 students in the middle school.
The answer: 840
What was the question?
Question: At a middle school, 20% of the students are in the band. If 168 students are in the band, how many students go to the middle school?
Reasoning and answer: Mom bought things that cost: 4 + 4 + 2 + 6 + 11 = 27 . So she has 55 27 = 28 left.
The answer: 28
What was the question?
Question:
Mom went shopping at the market. She left with 55. She bought 2 packs of bananas for 4 each, pears for 2, asparagus for 6 and finally a chicken for 11. How much money does Mom have left?