Each cm contains 10mm so 1165cm is 1165 * 10 = 11650mm. 154 - 150 = 4 pieces of the rope are 100mm each in length. The 4 pieces have a total length of 4 * 100 = 400mm. There is a length of 11650 - 400 = 11250mm left. 11250 mm into 150 equal pieces will give each piece as 11250 / 150 = 75mm long.
The answer: 75
Reverse engineering the question: A 1165 cm long rope is cut into 154 pieces. 150 of the pieces are equally sized and the remaining pieces are 100mm each. Find the length of each of the equal pieces in millimeters.


Reasoning and answer: If in one hour he covers 10 miles and rides for 15 miles at the rate of 10 miles per hour, then the time taken for the 15 miles will be 15 / 10 = 1.5 hours. The time in minutes is 1.5 * 60 = 90 minutes. The time taken for the remaining 20 miles at a rate of 10 miles per hour is 20 / 10 = 2 hours. The time in minutes is 2 * 60 = 120 minutes. The total time taken for the whole journey is the first 30 minutes + 90 + 30 minutes for resting + 120 minutes = 270 minutes.
The answer: 270
What was the question?
Question: Mr. Isaac rides his bicycle at the rate of 10 miles per hour for 30 minutes. If he rides for another 15 miles, rests for 30 minutes, and then covers the remaining distance of 20 miles, what's the total time in minutes took to travel the whole journey?


On Tuesday, she brings in 1 + 1 = 2 muffins. On Wednesday, she brings in 2 + 1 = 3 muffins. On Thursday, she brings in 3 + 1 = 4 muffins. On Friday, she brings in 4 + 1 = 5 muffins. In total, she brought 1 + 2 + 3 + 4 + 5 = 15 muffins to school to share with her friends. She baked a total of 15 + 7 = 22 muffins.
The answer: 22
Reverse engineering the question: Amy bakes muffins for her friends. On Monday, she brings 1 muffin to school to share. Each day for the rest of the week she brings one more muffin to school than she did the day before. If on Saturday she counts that there are 7 muffins left, how many did she originally bake?


Reasoning and answer: Three sets of toy organizers cost $78 x 3 = $234. Two gaming chairs cost $83 x 2 = $166. Leon's total orders amount to $234 + $166 = $400. Then, the delivery fee is $400 x 5 / 100 = $20. So, Leon had to pay a total of $400 + $20 = $420.
The answer: 420
What was the question?
Question: Leon ordered 3 sets of toy organizers for $78 per set and 2 gaming chairs for $83 each. If there is a delivery fee that is 5% of the total sales, how much did Leon pay?


Since there are four clowns at the carousel this year, the candy seller sold 20 * 4 = 80 candies to all the clowns. The thirty children also bought 20 * 30 = 600 candies in total. Altogether, the candy seller sold 600 + 80 = 680 candies to the clowns and children at the carousel. The number of candies the candy seller has left is 700 - 680 = 20.
The answer: 20
Reverse engineering the question: Every year, four clowns and thirty children go on a carousel. This year, the candy seller, at the carousel, had 700 candies. The candy seller then sold 20 candies, to each of the clowns and the children, who attended. How many candies did he have left?


Before throwing the cookies, Alice and Bob baked 74 + 7 = 81 cookies. After throwing the cookies, they baked 5 + 36 = 41 cookies. In total, they baked 81 + 41 = 122 cookies. They threw 122 - 93 = 29 cookies on the floor.
The answer: 29
Reverse engineering the question:
Alice and Bob decided to bake cookies for their first date. Alice baked 74 chocolate chip cookies and Bob baked 7 peanut butter cookies. After accidentally throwing some on the floor, Alice baked 5 more cookies and Bob baked 36 more. If they had 93 edible cookies at the end, how many were accidentally thrown on the floor?