[Question]For homework, Brooke has 15 math problems, 6 social studies problems, and 10 science problems. He can answer each math problem for 2 minutes while answering each social studies problem takes him 30 seconds. If he can answer each science problem in 1.5 minutes, how long will it take Brooke to answer all his homework?
[Answer]Brooke will take 15 x 2 = 30 minutes to answer all math problems. It will take him 6 x 30 seconds = 180 seconds to answer all social studies problems. In minutes, this is equal to 180 / 60 = 3 minutes. It will take him 10 x 1.5 minutes = 15 minutes to answer all science problems. Therefore, Brooke will take 30 + 3 + 15 = 48 minutes to finish his homework. The answer is 48.
Q: A chef needs to make french fries. He can get 25 fries out of 1 potato. He has 15 potatoes and he needs 200 fries. How many potatoes will he have leftover?
A: To make 200 fries he will need 200 / 25 fries per potato = 8 potatoes. He has 15 potatoes - 8 potatoes = 7 leftover potatoes. The answer is 7.
Question: Keanu bought some fish from the store for his pets. He gave his cat half as many fish as he gave to his dog. If he gave his dog 40 fish, and each fish cost him $4, calculate the total amount of money he spent at the store to buy all the fish.
Answer: The cat received half as many fish as the number given to the dog, which means the cat received 1 / 2 * 40 = 20 fish. This means Keanu bought 20 + 40 = 60 fish at the store. If each fish cost him $4, the total cost for the fish he bought at the store is 60 * $4 = $240. The answer is 240.
[Question]Roy owns a refrigerated warehouse where he stores produce before selling it at the farmer’s market. The fruits and vegetables he stores are very sensitive to temperature, and he must keep them all cold or they will spoil. One day, the power went out and the air conditioner was turned off for three hours, during which time the temperature rose by 8 degrees per hour. If Roy gets the power back on, it will activate the air conditioner to lower the temperature at the rate of 4 degrees F per hour. What is the amount of time, in hours, it will take for the air conditioner to restore the warehouse to 43 degrees F?
[Answer]At a rate of 8 degrees per hour, in three hours the temperature rose by 3 * 8 = 24 degrees. At a rate of 4 degrees per hour, the air conditioner can reduce the temperature 24 degrees in 24 / 4 = 6 hours. The answer is 6.
Q: The school has 14 boys and 10 girls. If 4 boys and 3 girls drop out, how many boys and girls are left?
A: There are 14 boys - 4 boys = 10 boys left. There are 10 girls - 3 girls = 7 girls left. In total there are 10 boys + 7 girls = 17 boys and girls left. The answer is 17.
Question: There were 50 fish in a pond and 3 times as many tadpoles. If Curtis catches 7 fish and half the tadpoles develop into frogs, how many more tadpoles than fish are there in the pond now?
Answer:
There were 50 x 3 = 150 tadpoles. There are 50 - 7 = 43 fish left in the pond. There are 150 / 2 = 75 tadpoles left in the pond. There are 75 - 43 = 32 more tadpoles than fish in the pond now. The answer is 32.