Reasoning and answer: The following week, he sold 50 x 3 = 150 kg of salmon. So he sold 50 + 150 = 200 kg of fish.
The answer: 200
What was the question?
Question: This week, the fishmonger sold 50 kg of salmon. He sold three times more the following week. What was the total amount of fish sold in two weeks?


Derek caught the ball 2 * 23 - 4 = 46 - 4 = 42 times. Tammy caught the ball 42 / 3 + 16 = 14 + 16 = 30 times.
The answer: 30
Reverse engineering the question: Joe played catch with Derek and Tammy. He caught the ball 23 times. Derek made four less than double the catches Joe did. Tammy caught the ball sixteen more than a third of the times Derek did. How many times did Tammy catch the ball?


Reasoning and answer: A total of 20 x 100 = 2000 grams are sold every week. Since 1 kilogram is equal to 1000 grams, then 2000 / 1000 = 2 kilograms of sugar are sold every week.
The answer: 2
What was the question?
Question: A store sells 20 packets of 100 grams of sugar every week. How many kilograms of sugar does it sell every week?


The factory creates 300 gummy bears a minute, which means it produces 300 / 50 = 6 packets of gummy bears per minute. It would take 240 / 6 = 40 minutes to manufacture enough gummy bears to fill 240 packets.
The answer: 40
Reverse engineering the question: The gummy bear factory manufactures 300 gummy bears a minute. Each packet of gummy bears has 50 gummy bears inside. How long would it take for the factory to manufacture enough gummy bears to fill 240 packets, in minutes?


Reasoning and answer: He can jump 3 * 60 = 180 times per minute. So he can jump 180 * 60 = 10,800 per hour. So it would take him 54,000 / 10,800 = 5 hours.
The answer: 5
What was the question?
Question: Mark wants to set the record for most consecutive ropes jumped. The record is 54,000. He can jump 3 times a second. How many hours would he need to jump rope?


Reasoning and answer: The total ratio of the coins they both have is 10 + 45 = 55. The fraction of the ratio representing the number of coins that Amalie has is 45 / 55, and since the total number of coins they both have is 440, Amalie has 45 / 55 * 440 = 360 coins. When Amalie spends 3 / 4 of what she has, she parts with 3 / 4 * 360 = 270 coins. She still has 360 coins - 270 coins = 90 coins.
The answer: 90
What was the question?
Question:
The ratio of coins that Elsa has to that which Amalie has is 10:45. If the total number of coins they have is 440, and Amalie spends 3/4 of what she has on toys, how many will she remain with?