The distance to the destination is 4 hours * 50 miles / hour = 200 miles. Traveling at 100 miles per hour, it will take 200 miles / (100 miles / hour) = 2 hours.
The answer: 2
Reverse engineering the question: A train takes 4 hours to reach a destination at a speed of 50 miles per hour. How long would it take if it traveled at 100 miles per hour instead?
Reasoning and answer: Michael takes half which is 60 pieces / 2 = 30 pieces. Paige then takes half of this which gives her 30 pieces / 2 = 15 pieces. Mandy is therefore left with 60 pieces 30 pieces 15 pieces = 15 pieces.
The answer: 15
What was the question?
Question: A bar of chocolate is made up of 60 pieces. If Michael takes half of the bar, Paige takes half of the remainder, and Mandy is left with what's left of the chocolate bar, how many pieces of chocolate will Mandy get?
3 sweatshirts cost 3 x 15 = 45$. 2 t - shirts cost 2 x 10 = 20 $. In total Hannah spent 45 + 20 = 65$.
The answer: 65
Reverse engineering the question: Hannah bought 3 sweatshirts and 2 T-shirts. Each sweatshirt cost 15$ and each t-shirt cost 10$. How much money did Hannah spend in all?
Reasoning and answer: There are 14 boys - 4 boys = 10 boys left. There are 10 girls - 3 girls = 7 girls left. In total there are 10 boys + 7 girls = 17 boys and girls left.
The answer: 17
What was the question?
Question: The school has 14 boys and 10 girls. If 4 boys and 3 girls drop out, how many boys and girls are left?
First calculate the cost of the pens for one student by multiplying the number of pens by the cost per pen: 5 pens * $0.50 / pen = $2.50. Then calculate the cost of the notebooks for one student by multiplying the number of notebooks by the cost per notebook: 3 notebooks * $1.25 / notebook = $3.75. Then calculate the cost of the highlighters for one student by multiplying the number of highlighters by the cost per highlighters: 2 highlighters * $0.75 / highlighter = $1.50. Now add the cost of all the different supplies to find the total cost for one student: $2.50 + $3.75 + $1.50 + $4.25 = $12.00. Now multiply the cost per student by the number of students to find the total cost before the discount: 30 students * $12.00 / student = $360.00. Now subtract the teacher discount to find the final cost: $360.00 - $100.00 = $260.00.
The answer: 260
Reverse engineering the question: Jackson is buying school supplies for his third grade class, which has 30 students. Each student needs 5 pens, 3 notebooks, 1 binder and 2 highlighters. Pens cost $0.50, notebooks cost $1.25, binders cost $4.25, and highlighters cost $0.75. If Jackson gets a $100 teacher discount, how much does he spend on school supplies?
349 - 108 = 241 and 241 - 153 = 88. There are 88 pieces of candy left in the bowl.
The answer: 88
Reverse engineering the question:
There were 349 pieces of candy in a bowl. Talitha took 108 pieces and Solomon took 153 pieces. How many pieces of candy remain in the bowl?