Question: Eric sorted 150 colored pencils into 5 containers for his art class. Before class, another teacher brought him 30 more pencils. How many can he evenly distribute between the five containers now?
Answer: Before the extra colored pencils, he had 150 / 5 = 30 colored pencils in each container. With the other colored pencils, he is given he now has 150 + 30 = 180 colored pencils. If you distribute them evenly each container should have 180 / 5 = 36 colored pencils. The answer is 36.
[Question]A class composed of 12 girls and 10 boys was sent to the library for their reading class. Their teacher found out that only 5/6 of the girls and 4/5 of the boys are reading. How many students are not reading?
[Answer]There are 12 x 5 / 6 = 10 girls who are reading. So, 12 - 10 = 2 girls are not reading. There are 10 x 4 / 5 = 8 boys who are reading. So, 10 - 8 = 2 boys are not reading. Thus, there are a total of 2 girls + 2 boys = 4 students who are not reading. The answer is 4.
Q: A lumberjack is chopping down trees so he can sell firewood. Each tree he chops produces 4 logs each, and each log is then chopped into 5 pieces of firewood. If the lumberjack has chopped 500 pieces of firewood, how many trees did he chop down?
A: The firewood is made from 500 pieces of firewood / 5 pieces of firewood per log = 100 logs. So the logs are chopped from 100 logs / 4 logs per tree = 25 trees. The answer is 25.
Question: Janet has to drive 30 miles east from home to see her dermatologist and 50 miles west from home to see her gynecologist. If she has appointments with both doctors on the same day, how many gallons of gas does she use driving to both appointments and back home again, if her car gets 20 miles per gallon?
Answer: First find the total distance she drives to get to the dermatologist and back to her house: 30 miles * 2 = 60 miles. Then find the total distance she drives to get to the gynecologist and back to her house: 50 miles * 2 = 100 miles. Then add those two amounts to find how far she drives total: 60 miles + 100 miles = 160 miles. Then divide that distance by her car's gas mileage to find how many gallons of gas she needs: 160 miles / 20 miles / gallon = 8 gallons. The answer is 8.
[Question]Anne is drawing pictures. She has 12 markers and she notices that each one lasts for about 1.5 drawings. If she has already made 8 drawings, how many more can she make before she runs out of markers?
[Answer]She can make 18 drawings in total because 12 x 1.5 = 18. She can make ten more because 18 - 8 = 10. The answer is 10.
[Question]Frank's laundry detergent is double concentrated and will wash 80 loads of laundry. His detergent is usually $25.00 a bottle but they're having a sale. If he buys 2 bottles, both bottles will drop to $20.00 a bottle. How much does he spend, in cents, per load of laundry, if he buys 2 bottles of detergent?
[Answer]
If he buys 2 bottles, the price drops to $20.00 per bottle so they cost 2 * 20 = $40.00. He can get 80 loads of laundry per bottle and he bought 2 bottles so that's 80 * 2 = 160 loads of laundry. The detergent cost $40.00 and he will be able to wash 160 loads of laundry so each load costs 40 / 160 = $0.25. The answer is 25.