Reasoning and answer: We know that 5 people came in and 2 people left after Bethany's shift started, so there was a net change of 5 2 = 3 people. If there are 19 people now in the gym and that is 3 more than when Bethany's shift started, we know there were 19 3 = 16 people lifting weights at the start of her shift.
The answer: 16
What was the question?
Question: Bethany is working at the front desk at Joe's Gym. There were some people lifting weights when she started her shift. Then 5 more people came in and started running on the treadmill and 2 people left. There are now 19 people in the gym. How many people were lifting weights at the start of Bethany's shift?
The cost required for buying land is $50 / sq m * 2000 sq m = $100000. The cost required for buying bricks is $100 / 1000 bricks * 10000 bricks = $1000. The cost required for buying roof tiles is $10 / tile * 500 tiles = $5000. The total construction cost is $100000 + $1000 + $5000 = $106000.
The answer: 106000
Reverse engineering the question: A quantity surveyor is figuring the construction costs for a couple that wishes to build a house. The costs are as follows: land costs $50 per square meter, bricks cost $100 per 1000 bricks and roof tiles cost $10 per roof tile. If the house they wish to build requires 2000 square meters, 10000 bricks, and 500 roof tiles, how much construction costs are required for this project?
Reasoning and answer: The total price of the barbells was 850 - 40 = $810. So each one cost 810 / 3 = $270.
The answer: 270
What was the question?
Question: John buys 3 barbells and gives $850 and gets $40 in change. How much did each barbell cost?
On Monday Zach spent 620 * 0.5 = 310 dollars on miles. On Thursday Zach spent 744 * 0.5 = 372 dollars on miles. In total, Zach spent 150 + 310 + 372 = 832 dollars.
The answer: 832
Reverse engineering the question: Zach rented a car for $150 plus 50 cents for each mile. He drove 620 miles on Monday and another 744 miles on Thursday. How much did he spend?
Reasoning and answer: If Zack's classroom had 22 students when he was absent, then the total students in his class are 22 + 1 = 23. If Tina's classroom has as many students as Maura's then T = M. If Zack's classroom has half the amount of total students between Tina and Maura's classrooms then 23 = 1 / 2 * (T + M ). 23 = 1 / 2 * (T + M). We know from above that T = M, therefore 23 = (1 / 2) * (M + M) or 23 = (1 / 2) * 2M. 23 = M. Because T = M, then T is also T = 23. Between the three classes then we have a total of T + M + Z or 23 + 23 + 23 = 69.
The answer: 69
What was the question?
Question: Tina's classroom has the same amount of students as Maura's. Zack's classroom has half the amount of total students between Tina and Maura's classrooms. How many students are there in total between the 3 classrooms if when Zack was sick there were 22 students in his class?
Reasoning and answer: Lorene has 25 x 3 = 75 pieces of stationery. Thus, Georgia has 75 - 25 = 50 fewer pieces of stationery than Lorene.
The answer: 50
What was the question?
Question:
Georgia has 25 pieces of stationery while Lorene has three times as many pieces of stationery as Georgia. How many fewer pieces of stationery does Georgia have than Lorene?