Question: Olga has an aquarium with fish in 5 different colors. There are 12 yellow ones, half as many blue ones, and twice as many green ones as yellow ones. How many fish does Olga have in her aquarium?
Answer: Olga has half as many blue fish as yellow ones, which means 12 * 0.5 = 6 blue fish. Green fish are twice as many as yellow ones, so in total there are 12 * 2 = 24 green fish. So all the fish sum up to 12 + 6 + 24 = 42. The answer is 42.
[Question]Jeremy buys 30 watermelons. He eats 3 watermelons per week. Each week he gives 2 to his dad. How many weeks will the watermelons last?
[Answer]Jeremey goes through 3 + 2 = 5 watermelons per week. Therefore, the watermelons will last him to 30 / 5 = 6 weeks. The answer is 6.
Q: James spends 3 hours vacuuming and 3 times as long on the rest of his chores. How long does he spend on his chores?
A: He spends 3 * 3 = 9 hours on his other chores. So he spends 3 + 9 = 12 hours on chores. The answer is 12.
Question: Arven bought five puppies for a total cost of $800. Three puppies are on sale for $150 each. How much does each of those two other puppies cost if they cost the same?
Answer: Three puppies on sale cost $150 x 3 = $450. The other two puppies cost $800 - $450 = $350. So, each of those two other puppies cost $350 / 2 = $175. The answer is 175.
[Question]There are two warehouses. The first warehouse has twice as many boxes as the second warehouse. If the first warehouse has 400 boxes, how many boxes are there in both warehouses combined?
[Answer]The second warehouse has 400 / 2 = 200 boxes. Collectively, there are 400 + 200 = 600 boxes in the first and second warehouse. The answer is 600.
[Question]The math teacher would be happy if the class average test score was at least 85. There are 10 students in the class, 5 of which scored a 92 on the test and 4 of which scored an 80. What would the last student have to score to at least make the teacher happy?
[Answer]
5 students scored a combined total of 92 * 5 = 460. 4 additional students scored a combined total of 80 * 4 = 320. 9 students therefore scored a combined total of 460 + 320 = 780. We know the total combined score for 10 students must be at least 85 average * 10 students = 850. Therefore, the last student must score at least an 850 - 780 = 70. The answer is 70.