On Wednesday, Liza had $800 - $450 = $350 left in her account. After depositing on Thursday, she had $350 + $1500 = $1850 in her account. On Friday, she paid a total of $117 + $100 = $217 for her electricity and internet bills. So, $1850 - $217 = $1633 was left on her account on Friday. After paying her phone bill, Liza has $1633 - $70 = $1563 left in her account.
The answer: 1563
Reverse engineering the question: On Tuesday, Liza had $800 in her checking account. On Wednesday, she paid her rent, $450. On Thursday, she deposited her $1500 paycheck. On Friday, she paid her electricity and internet bills which were $117 and $100, respectively. Then on Saturday, she paid her phone bill, $70. How much money is left in Liza's account?
Reasoning and answer: To go to school and back, Shane drives 2 * 10 = 20 miles per day. In 80 days of a semester, he drives for 80 * 20 = 1600 miles.
The answer: 1600
What was the question?
Question: Every day, while going to school, Shane drives a total of 10 miles. Calculate the total distance he drives in an 80 day semester from home to school and back.
On weekdays he eats 5 * 2 = 10 chocolates. On weekends he eats 2 * 1 = 2 chocolates. He eats 10 + 2 = 12 chocolates in a week. It takes 24 / 12 = 2 weeks to finish all the chocolate.
The answer: 2
Reverse engineering the question: Erwin eats 2 chocolates on weekdays and 1 chocolate on weekends. He ate 24 chocolates in total. How many weeks did it take to finish all the chocolate?
Reasoning and answer: A quarter of 48 is 48 / 4 = 12. The number is 12 + 15 = 27.
The answer: 27
What was the question?
Question: What is fifteen more than a quarter of 48?
The traveler's camel drank 7 * 32 = 224 ounces of water. Together, the traveler and his camel drank 32 + 224 = 256 ounces. Thus, they drank 256 / 128 = 2 gallons of water altogether.
The answer: 2
Reverse engineering the question: A thirsty traveler found an oasis in the desert. He drank 32 ounces of water. His camel drank seven times as much as he did. There are 128 ounces in a gallon. How many gallons of water did they drink altogether?
The sell reduced the price of each pin by 20 * .15 = $3. So he paid 20 - 3 = $17 per pin. So the total cost was 17 * 10 = $170.
The answer: 170
Reverse engineering the question:
John decided to buy 10 pins for himself. They are normally $20 each but they were on sale for 15% off. How much did he spend on pins?