Movie tickets cost for two people is $8 x 2 = $16. The sisters will receive change of $25 - $16 = $9.
The answer: 9
Reverse engineering the question: Two sisters go to the movies. Movie tickets are $8 per person. If the sisters brought $25 with them, how much change will they receive after buying the tickets?
Reasoning and answer: Javier = 50 * 7 = 350 minutes. Sanda = 90 * 3 = 270 minutes. Total = 350 + 270 = 620 minutes. Together Javier and Sanda exercised for 620 minutes.
The answer: 620
What was the question?
Question: Javier exercised for 50 minutes every day for one week. Sanda exercised for 90 minutes on each of three days. How many minutes did Javier and Sanda exercise in total?
Tilly will make 100 x $10 = $1000 in total. She has spent $1000 - $300 = $700 on 100 bags. Each bag cost Tilly $700 / 100 = $7.
The answer: 7
Reverse engineering the question: Tilly needs to sell 100 bags at $10 per bag to make $300 in profit. How much did she buy each bag for?
Reasoning and answer: Jethro has 60 / 3 = $20. Twice of what Jethro has is $20 x 2 = $40. Carmen has $40 - 7 = $33. The sum of all their money is $60 + $20 + $33 = $113.
The answer: 113
What was the question?
Question: Carmen needs $7 more to have twice the amount of money that Jethro has. Meanwhile, Patricia has $60, which is 3 times as much as Jethro. What is the sum of all their money?
The number of blocks traveled on the way to the post office was 5 + 20 = 25. Pete traveled 25 2 = 50 blocks in all.
The answer: 50
Reverse engineering the question: Pete walked 5 blocks from his house to the bus garage in Houston. He rode the bus 20 blocks to the post office to get some stamps. Later, he came home the same way. How many blocks did Pete travel in all?
Oliver's $20 bills amount to $20 x 10 = $200. Oliver's $5 bills amount to $5 x 3 = $15. So, Oliver has a total of $200 + $15 = $215. William's $10 bills amount to $10 x 15 = $150. William's $5 bills amount to $5 x 4 = $20. So, William has a total of $150 + $20 = $170. Therefore, Oliver has $215 - $170 = $45 more than William.
The answer: 45
Reverse engineering the question:
Oliver has 10 $20 and 3 $5 bills. William has 15 $10 and 4 $5 bills. How much more money does Oliver have than William?