Question: A candy store uses food colouring in various candies. Each lollipop uses 5ml of food colouring, and each hard candy also needs food colouring. In one day, the candy store makes 100 lollipops and 5 hard candies. They do not use food colouring in anything else. The store has used 600ml of food colouring by the end of the day. How much food colouring, in millilitres, does each hard candy need?
Answer: In total, the lollipops needed 5ml of food colouring * 100 lollipops = 500ml of food colouring. This means that the hard candies needed 600ml total food colouring – 500ml food colouring for lollipops = 100ml of food colouring. So each hard candy needed 100ml of food colouring / 5 hard candies = 20 ml of food colouring. The answer is 20.
[Question]James rents his car out for $20 an hour. He rents it for 8 hours a day 4 days a week. How much does he make a week?
[Answer]He rents it out for 8 * 4 = 32 hours. That means he makes 32 * 20 = $640. The answer is 640.
Q: There are 60 passengers on a bus. Children make up 25% of the bus riders. How many adults are on the bus?
A: The number of children on the bus is 60 passengers * 25% = 15 passengers. The number of adults on the bus is 60 passengers - 15 passengers = 45 passengers. The answer is 45.
Question: 20 birds migrate on a seasonal basis from one lake to another, searching for food. If they fly from lake Jim to lake Disney in one season, which is 50 miles apart, then the next season they fly from lake Disney to lake London, 60 miles apart, calculate the combined distance all of the birds have traveled in the two seasons.
Answer: The birds' flying distance between Lake Jim through lake Disney to lake London is 50 + 60 = 110 miles. Since each bird flies the 110 miles distance while migrating, the combined distance they fly together is 110 * 20 = 2200 miles. The answer is 2200.
[Question]Brennan was researching his school project and had to download files from the internet to his computer to use for reference. After downloading 800 files, he deleted 70% of them because they were not helpful. He downloaded 400 more files but again realized that 3/5 of them were irrelevant. How many valuable files was he left with after deleting the unrelated files he downloaded in the second round?
[Answer]The number of non - valuable files Brennan downloaded in the first round is 70 / 100 * 800 = 560 files. The number of valuable files Brennan downloaded in the first round is 800 - 560 = 240. When he downloaded 400 new files, there were 3 / 5 * 400 = 240 non - useful files, which he deleted again. The total number of valuable files he downloaded in the second round is 400 - 240 = 160. To write his research, Brennan had 160 + 240 = 400 useful files to reference to write his research. The answer is 400.
[Question]Working together, four pugs can clean their house in 45 minutes. In how many minutes will 15 pugs working together be able to clean their house?
[Answer]
If four pugs can clean their house in 45 minutes, one pug will take 4 * 45 = 180 minutes. Since one pug working alone takes 180 minutes to clean the house, fifteen pugs working together will be able to clean their house in 180 / 15 = 12 minutes. The answer is 12.