Marie will read 20 but gain 6 unread messages a day, so she will lower the number of messages by 20 - 6 = 14. Thus, it will take her 98 / 14 = 7 days to read all her unread messages.
The answer: 7
Reverse engineering the question: Marie has 98 unread messages on her phone. She decides to clear them by reading 20 messages a day. However, she also gets 6 new messages a day. How many days will it take her to read all her unread messages?
Reasoning and answer: Sangita has already flown for a total of 50 hours + 9 hours + 121 hours = 180 hours. The flight time she has remaining is 1500 hours - 180 hours = 1320 hours. Sangita's monthly target must therefore be 1320 hours / 6 months = 220 hours / month.
The answer: 220
What was the question?
Question: To earn an airplane pilot certificate, Sangita is required to fly 1,500 hours. She has already completed 50 hours of day flying, 9 hours of night flying, and 121 hours flying cross-country. To meet her goal in exactly 6 months, how many hours per month must Sangita fly?
Now that he is an adult, Bobby can jump 60 * 1 = 60 jumps per minute. Bobby can jump 60 - 30 = 30 more jumps than when he was a child.
The answer: 30
Reverse engineering the question: As a child, Bobby was able to jump rope 30 times per minute. Now that he is an adult, he can jump 1 jump per second. How many more jumps than when he was a child is Bobby able to jump now that he is an adult?
Reasoning and answer: Alton earns $8 x 7 = $56 per week. Therefore, his weekly profit after paying the rent is $56 - $20 = $36.
The answer: 36
What was the question?
Question: Alton owns a business. He is currently renting a space that costs $20 per week. If Alton earns $8 per day, how much is his total profit every week?
On Monday and Tuesday Bart finished 3 + 4 = 7 surveys. Each survey has 10 questions, so he answered 10 * 7 = 70 questions. Bart gets paid $0.2 for each questions, so he earned 70 * $0.2 = $14.
The answer: 14
Reverse engineering the question: Bart fills out surveys to earn money. He receives $0.2 for every question he answers in the survey. Each survey has 10 questions. On Monday he finished 3 surveys, and on Tuesday 4 surveys. How much money did he earn during these two days?
At 7 weeks old, the puppy weighed 6 pounds, but doubled in weight by week 9 to reach a weight of 6 * 2 = 12 pounds. It doubled in weight again at 3 months old to reach a weight of 12 * 2 = 24 pounds. It doubled in weight again at 5 months old to reach a weight of 24 * 2 = 48 pounds. And it reached its full adult weight by adding another 30 lbs to reach a final weight of 48 + 30 = 78 pounds.
The answer: 78
Reverse engineering the question:
Bert's golden retriever has grown tremendously since it was a puppy. At 7 weeks old, the puppy weighed 6 pounds, but doubled in weight by week 9. It doubled in weight again at 3 months old, and doubled again at 5 months old. Finally, the dog reached its final adult weight by adding another 30 pounds by the time it was one year old. What is the dog's full adult weight, in pounds?