Question: If Katherine has 4 apples and 3 times as many pears in her fridge, how many bananas does she have if she has a total of 21 pieces of fruit?
Answer: Katherine has a total of 3 * 4 apples = 12 pears. She therefore had 4 apples + 12 pears = 16 apples and pears. We know she has 21 total pieces of fruit, so this means she must have 21 total - 16 = 5 bananas. The answer is 5.
[Question]Omar buys a 12-ounce cup of coffee every morning on the way to work. On the way to work, he drinks one-quarter of the cup. When he gets to his office, he drinks another half of the cup. He forgets to drink any more of his coffee once he starts working, and when he remembers his coffee, he only drinks 1 ounce of the remaining amount because it is cold. How many ounces will be left in the cup afterward?
[Answer]Omar drinks 1 / 4 * 12 = 12 / 4 = 3 ounces on the way to work. Omar drinks 1 / 2 * 12 = 12 / 2 = 6 ounces when he gets to his office. When he drinks 1 ounce more, he will have drunk 3 + 6 + 1 = 10 ounces. Thus, there will be 12 - 10 = 2 ounces left in the cup afterward. The answer is 2.
Q: There are 7 mL of solution in each of 6 test tubes. Dr. Igor takes all of the solution and then evenly distributes it into 3 beakers. How many mL of solution are in each beaker?
A: 7 * 6 = 42 mL. 42 / 3 = 14 mL. Each beaker holds 14 mL of solution. The answer is 14.
Question: Jimmy wants to play in the inflatable swimming pool in his backyard. The swimming pool is empty and the garage is locked, so he cannot use the hose to fill the pool. He finds a 2 gallon bucket and calculates that it takes 20 seconds to fill the bucket from the tap and carry it to the pool where he pours in the water. If the pool holds 84 gallons of water, how many minutes will it take Jimmy to fill the pool?
Answer: It will take 84 / 2 = 42 trips to fill the pool with water. This will take Jimmy 42 trips * 20 seconds per trip = 840 seconds. This means that Jimmy will spend 840 seconds * 1 minute / 60 seconds = 14 minutes filling the pool. The answer is 14.
[Question]Marcus has three times as many cheese crackers as Mona. Nicholas has 6 more crackers than Mona. If Marcus has 27 crackers, how many crackers does Nicholas have?
[Answer]Mona has 27 / 3 = 9 cheese crackers. Nicholas has 9 + 6 = 15 cheese crackers. The answer is 15.
[Question]There are 10 rows of 15 chairs set up for the award ceremony. The first row is reserved for the awardees while the second and third rows are for the administrators and teachers. The last two rows are then reserved for the parents and the rest of the rows are for the students. If only 4/5 of the seats reserved for the students are occupied, how many vacant seats from the students can be given to the parents?
[Answer]
There are 1 + 2 + 2 = 5 rows that are not reserved for the students. Hence, 10 - 5 = 5 rows are reserved for the students. That is equal to 5 x 15 = 75 seats. But only 75 x 4 / 5 = 60 seats are occupied by the students. Therefore, 75 - 60 = 15 seats can be given to the parents. The answer is 15.