Question: Lucy works in a pet shop. She can clean 2 aquariums in 3 hours. If Lucy is working 24 hours this week, how many aquariums could she clean?
Answer: Step-by-step reasoning process: We know how many aquariums Lucy can clean in a 3 - hour increment. This week, Lucy will work for 24 / 3 = 8 increments. Lucy can clean 2 aquariums per increment, so she can clean 2 x 8 = 16 aquariums.
So the answer is 16.

Question: Louise is hanging 30 of her pictures on the wall. She hangs some of them vertically, half of them horizontally, then hangs the remaining 5 pictures haphazardly. How many pictures did Louise hang vertically?
Answer: Step-by-step reasoning process: There are 30 / 2 = 15 pictures hanging horizontally. So there is a total of 15 + 5 = 20 pictures hanging either horizontally or haphazardly. Therefore, there are 30 20 = 10 pictures hanging vertically.
So the answer is 10.

Question: Three old cars displayed in an auction event have different manufacture dates. The first car, made in 1970, was made 10 years earlier than the second car. The third car was manufactured 20 years later after the second car was manufactured. Calculate the year that the third car was made.
Answer: Step-by-step reasoning process: If the first car was made 10 years earlier than the second car, then the manufacture date for the second car is 1970 + 10 = 1980. The third car was manufactured 20 years after the second car was made, which is 1980 + 20 = 2000.
So the answer is 2000.

Question: Randy has 60 mango trees on his farm. He also has 5 less than half as many coconut trees as mango trees. How many trees does Randy have in all on his farm?
Answer:
Step-by-step reasoning process: Half of the number of Randy's mango trees is 60 / 2 = 30 trees. So Randy has 30 - 5 = 25 coconut trees. Therefore, Randy has 60 + 25 = 85 treeson his farm.
So the answer is 85.