There were 9 - 4 = 5 other pills. Each of the other pills cost 1.50 + 5.50 = 7 dollars each. The 5 pills cost a total of 7 * 5 = 35 dollars. The first 4 pills cost 1.50 * 4 = 6 dollars in total. Henry spent a total of 35 + 6 = 41 dollars.
The answer: 41
Reverse engineering the question: Henry took 9 pills a day for 14 days. Of these 9 pills, 4 pills cost $1.50 each, and the other pills each cost $5.50 more. How much did he spend in total on the pills?


Reasoning and answer: She gives the boy she likes 10 stickers. After giving the boy his stickers, she has 100 – 10 = 90 stickers left. She gives her best friends 90 / 2 = 45 stickers. This leaves Clara with 90 – 45 stickers = 45 stickers.
The answer: 45
What was the question?
Question: Clara brings a package of 100 stickers to school. She gives 10 stickers to a boy she likes. She gives half of the stickers which she has left to her best friends. How many stickers does Clara have left?


Since dogs have 4 legs, then 2 dogs have a total of 2 x 4 = 8 legs. So, there are 8 dog legs + 2 chicken legs = 10 legs in all.
The answer: 10
Reverse engineering the question: Adlai has 2 dogs and 1 chicken. How many animal legs are there in all?


Reasoning and answer: He saw 25 total vehicles because 12 plus 13 equals 25. He saw 100 wheels because 25 times 4 equals 100.
The answer: 100
What was the question?
Question: Tommy goes for a run around his neighborhood and decides to calculate how many wheels he saw. All the trucks in his neighborhood have 4 wheels and all the cars in his neighborhood also have 4 wheels. If he saw 12 trucks and 13 cars, how many wheels did he see?


Maria has $120 and received $250 from her mother. So she has 120 + 250 = $370. As the price of the bike stands at $600, Maria needs 600 – 370 = $230 more to buy the bike.
The answer: 230
Reverse engineering the question: Maria wants to buy a brand new bike. The retail price at the bike shop stands at $600. She saved $120 toward the purchase. As this was not enough, she asked her mother to give her the remaining amount. Her mother offered her $250 and told her that she needs to earn the rest working during the holidays. How much money must Maria earn to be able to buy the bike she wants?


The cost of Dale's toast is 2 × $1 = $2. The cost of Andrew's toast is 1 × $1 = $1. The cost of Dale's eggs is 2 × $3 = $6. The cost of Andrew's eggs is 2 × $3 = $6. Their breakfast cost $2 + $1 + $6 + $6 = $15.
The answer: 15
Reverse engineering the question:
Dale and Andrew had breakfast at a cafe. A slice of toast costs £1, and eggs cost £3 each. Dale had 2 slices of toast and 2 eggs. Andrew had 1 slice of toast and 2 eggs. How much did their breakfast cost?