His partner has been teaching for 40 - 10 = 30 years. So together they have 40 + 30 = 70 years of experience.
The answer: 70
Reverse engineering the question: James spends 40 years teaching. His partner has been teaching for 10 years less. How long is their combined experience?


Reasoning and answer: Jenny needs to print 7 * 25 = 175 pages. This will cost 175 * $.10 = $17.5. The pens will cost 7 * $1.50 = $10.50. In total, she will spend $17.5 + $10.5 = $28. Since she pays with 2 twenty dollar bills she pays with 2 * 20 = 40 dollars. Thus, she will get $40 - $28 = $12 in change.
The answer: 12
What was the question?
Question: It costs $.10 to print one page. Jenny wants to print 7 copies of her 25-page essay. She also wants to buy 7 pens that each cost $1.50. If she pays the store with 2 twenty dollar bills, how much money should she get in change?


The total cost of The Life Journey is 3 × $100 = $300. The total cost of When You Rescind is 3 × $85 = $255. The total cost of A Day a Life is 3 × $50 = $150. The total cost for all the CDs is $150 + $255 + $300 = $705.
The answer: 705
Reverse engineering the question: I went to the music shop and there were CDs of The Life Journey for $100, A Day a Life for $50, and When You Rescind for $85 on display. If I bought 3 of each CD to share with my friends, what's the total amount of money I spent in the shop?


Reasoning and answer: Jerome rides a total of 12 x 12 = 144 miles in 12 days. So, he will ride 150 - 144 = 6 miles on the 13th day to finish his goal.
The answer: 6
What was the question?
Question: Jerome is taking a 150-mile bicycle trip. He wants to ride 12 miles for 12 days. How long will he ride on the 13th day to finish his goal?


First figure out how many square feet the original bolt of fabric was: 16 feet * 12 feet = 192 square feet. Then figure out how much fabric Ann took for the living room curtains: 4 feet * 6 feet = 24 square feet. Then figure out how much fabric Ann took for the bathroom curtains: 2 feet * 4 feet = 8 square feet. Finally, subtract the square footage of both sets of curtains from the total square footage: 192 - 24 - 8 = 160 square feet.
The answer: 160
Reverse engineering the question: Ann is cutting fabric to make curtains. She cuts a 4 foot by 6 foot rectangle for the living room, and a 2 foot by 4 foot rectangle for the bedroom. If the bolt of fabric is 16 feet by 12 feet, how much fabric is left in square feet?


He saved up $110 total because 95 + 15 = 110. He saved $15 from his allowance because 3 x 5 = 15. He earned $60 mowing lawns because 4 x 15 = 60. He earned $35 shoveling driveways because 110 - 60 - 15 = 35. He shoveled 5 driveways because 35 / 7 = 5.
The answer: 5
Reverse engineering the question:
Tobias is buying a new pair of shoes that costs $95. He has been saving up his money each month for the past three months. He gets a $5 allowance a month. He also mows lawns and shovels driveways. He charges $15 to mow a lawn and $7 to shovel. After buying the shoes, he has $15 in change. If he mows 4 lawns, how many driveways did he shovel?