Mike is using 40 blocks / 2 = 20 blocks of type B. He uses in total 40 blocks + 20 blocks = 60 blocks of type A and B. So he is going to use 150 blocks - 60 blocks = 90 blocks of other types.
The answer: 90
Reverse engineering the question: Mike is building a bridge out of LEGO blocks. To be successful he needs at least 40 bricks of type A, and half that many of type B. In total, he needs to use 150 bricks. How many bricks of other types than mentioned is he going to use?
Reasoning and answer: Each bag was $6.00 but was marked down 75% for clearance so that's 6 * .75 = $4.50 discount. Each bag was $6.00 and there is a $4.50 discount so each bag is 6 - 4.50 = $1.50. Each bag was marked down to $1.50 a bag and she bought 2 bags for a total of 1.5 * 2 = $3.00.
The answer: 3
What was the question?
Question: Carla bought 2 bags of mini peanut butter cups on clearance. Each bag was $6.00 but was 75% off. How much did she spend on 2 bags of candy?
After this week, Michelangelo will have 28 - 12 = 16 more ceilings to paint. Next week, Michelangelo will paint 12 / 4 = 3 ceilings. Michelangelo will have 16 - 3 = 13 more ceilings to paint.
The answer: 13
Reverse engineering the question: Michelangelo has 28 ceilings to paint. This week, he paints 12 of them. Next week, he will paint 1/4 the number of ceilings he did this week. How many ceilings will be left to paint after next week?
Reasoning and answer: From city A to city B, the bus carried 3 / 4 * 200 = 150 passengers. On the return trip, the bus carried 4 / 5 * 200 = 160 passengers. In total, the bus carried 160 + 150 = 310 passengers.
The answer: 310
What was the question?
Question: A bus has a capacity of 200 people. If it carried 3/4 of its capacity on its first trip from city A to city B and 4/5 of its capacity on its return trip, calculate the total number of people the bus carried on the two trips?
First find the number of eggs that each turtle successfully hatches: 20 eggs * 40% = 8 eggs. Then multiply the number of eggs per turtle by the number of turtles to find the total number of eggs: 8 eggs / turtle * 6 turtles = 48 turtles.
The answer: 48
Reverse engineering the question: Each turtle lays a clutch of 20 eggs. If 40% of the eggs successfully hatch, how many hatchlings do 6 turtles produce?
After the accident, Mike can only type 65 words / minute - 20 words / minute = 45 words / minute. So, he will be able to finish typing the document in 810 words / 45 words / minute = 18 minutes.
The answer: 18
Reverse engineering the question:
Mike can type 65 words per minute. Due to a minor accident, Mike cannot use his right hand for a while so that his typing speed is now 20 words less per minute. If he is supposed to type a document with 810 words, how many minutes will it take him to finish typing the document?