Ratio + work - practice problems
Number of problems found: 88
- Shifts 82622
Four trucks will move the pile in 25 shifts. How many cars are needed to reduce the time by 2:5? - Cleaners 81056
Four cleaners will clean the hotel in 15 hours. How long will they clean if, after 8 hours, one gets injured and leaves? - Hypotenuse 79904
I have a right triangle, the length of the hypotenuse is c 20, and I only know the side ratio a:b = 2:1. I can't figure out the actual length of the hangers = I'm already an old man, and my brain doesn't work at 100% like it did years ago at school - I co - The angles 3
The angles in a triangle are in the ratio of 3:4:5. Work out the size of each angle.
- Pasture 79214
I need to find out the number of bulls in the third period. In the first period, 12 bulls grazed on 3 and 1/3 ha for 4 weeks. In the second period, 21 bulls graze on 10 ha for 9 weeks. How many bulls in the third period graze for 24ha and 18 weeks? The pa - 13680m2 70374
Eight painters painted an area of 15200 m² in 5 days. How many painters will paint a room of 13680 m² in 3 days? - Transported 67924
On Thursday, 240 skiers had to be transported, and two buses took 30 minutes to do so. If there were 660 skiers on the piste and three buses were used, how long did the transport take on Saturday? - Identical 63584
Water flows out of the tank in 28 minutes via three identical pipes. How long would it run through seven similar pipes? - Hat and scarf
Katy knitted a scarf four times faster than a hat. Knitting together lasted 15 days. How much did she knit a hat?
- Together 46221
Jeníček and Ferek brigade together. They divided the work in a ratio of 4: 6. Ferko was paid 24 euros. How many euros did they earn together? - Efficient 43461
Four workers were supposed to build 200m of the fence in 15 days. However, after 3 days, two more workers came to their aid. All workers were equally efficient. Calculate how many meters of the fence (from the original 200m) remained after the first 3 day - Revitalization 39191
Workers are building a new sidewalk while revitalizing the housing estate. Six workers will do the work in 12 days, but this is a problem because the sidewalk must be completed in 10 days to complete the work on time. How many workers must be hired to com - The mountain hut
The mountain hut has a supply of food for eight tourists for 15 days. Half more were come. How long will their food supply last if the daily ratio remains the same? - Two xeroxes
The performances of the two copiers are in the ratio of 3: 4. A machine with higher power will make 7,200 copies in one hour. How many copies will both machines make together in 5 hours?
- Mr. Ben
Mr. Ben drives bricks to the construction site. If he drove three times a day, he would make bricks in 8 days. How many times a day would he go every day to be done two days earlier? - Eighteen 31561
Eighteen nozzles fill the pool in 12 and a half hours. How long does it take for the pool to fill 15 nozzles? - Everyone drinks the same
Twenty-four bricklayers drink 72 beverage bottles a day at the construction site. How many bottles would 19 bricklayers need? Everyone drinks the same. - Six workers
Six workers earned a total of CZK 12,600 per week on the construction site (5 working days). How much do seven workers earn in 10 days with the same daily average salary? - Five combers
Five combers harvest 12 rows of strawberries in 4 hours. How many rows of strawberries will two combers harvest in 10 hours?
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