Question: Carla is making smoothies. If she uses 500 ml of watermelon puree and 100 ml of cream, how many 150 ml servings can she make?
Answer: First find the total volume of the smoothie mix: 500 ml + 100 ml = 600 ml. Then divide the total volume by the volume per serving to find the number of servings: 600 ml / 150 ml / serving = 4 servings. The answer is 4.
[Question]The lifespan of a hamster is 6 years less than that of a bat. The lifespan of a frog is 4 times that of a hamster. Altogether, the lifespan of the animals is 30 years. What is the lifespan of the bat?
[Answer]Let's set up an equation by calling the lifespan of a bat x, and therefore the lifespan of the hamster x 6, and the lifespan of the frog 4 (x 6) which add together to equal 30, like this: x + x 6 + 4 (x 6) = 30. That gives us 6x 30 = 30 and we should add 30 to each side to try to isolate the x. Now we have 6x = 60, which we will divide by 6, 6x / 6 = 60 / 6. This gives us x = 10. The bat has a lifespan of 10 years. The answer is 10.
Q: A colony of bees can contain up to 80000 individuals. In winter they are more exposed to death, and if the winter is really cold the bees can begin to die slowly. If the colony starts to lose 1200 bees per day, how many days will pass until the number of bees in the colony reaches a fourth of its initial number?
A: A fourth of the initial number of bees is 80000 bees / 4 = 20000 bees. The number of bees that has to die is 80000 bees 20000 bees = 60000 bees. For the colony to reach a fourth of its population, 60000 bees 1200 bees / day = 50 days have to pass. The answer is 50.
Question: Josie received $50 as a gift. She plans to buy two cassette tapes that cost $9 each and a headphone set that costs $25. How much money will she have left?
Answer: The cassette tapes will cost 2 9 = $18. She spends 18 + 25 = $43 in total. Josie will have 50 - 43 = $7 left. The answer is 7.
[Question]Nina wants to give presents to her children. She buys three toys at $10 each, two packs of basketball cards at $5 each, and five shirts at $6 each. How much does she spend in all?
[Answer]Three toys cost 3 x $10 = $30. Two packs of basketball cards cost 2 x $5 = $10. And, five shirts cost 5 x $6 = $30. Therefore, Nina spends a total of $30 + $10 + $30 = $70 in all. The answer is 70.
[Question]In a town, there are four primary schools. Two of them can teach 400 students at a time, and the other two 340 students at a time. How many students at a time in total, can these four primary schools teach?
[Answer]
Two schools can teach 400 students, so in total, they can teach 2 * 400 = 800 students. The other two schools can teach 340 students, which gives 2 * 340 = 680 students in total. So all four schools can teach 800 + 680 = 1480 students at a time. The answer is 1480.