Work + simple proportion - practice problems - page 2 of 5
Number of problems found: 88
- Seamstresses 42451
Eight seamstresses will make the order in 15 shifts. How many will be sewists if they have to complete an order three shifts earlier? - Cardholders 21563
Two cardholders will build a tower of cards in 0.5 hours. In how many hours will five such a tower be built? - 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. - Reading
If I read 15 pages a day, I will read the whole book in 18 days. How long will it take to read a book if I only read nine pages every day? - Identical 63584
Water flows out of the tank in 28 minutes via three identical pipes. How long would it run through seven similar pipes? - Performance 4067
Twenty students will plant 1,200 trees in 4 hours. How many students do you need to plant 2100 trees in 3 hours at the same performance? - Lumberjacks
Fifteen lumberjacks would take 12 days to destroy the broken trees. How many days would this work require if the company added five workers to it after four days? - Five pumps
The water tank is filled with two pumps in 48 minutes. How long would it take to fill it with five same pumps? - 4 pipes
The tank flows out by four pipes in 6 hours 120 hl water. How much water flows out of 5 pipes of the same diameter in 14 hours? - Part-timers
Six part-timers would take seven hours to pick strawberries. How long would this work take if two more temporary workers were added after three hours? - Eight masons
Eight masons will plaster a wall with an area of 1440 m² in 9 days. They work 8 hours a day. How much area will plaster six masons in 4 hours? - Pumps
Four identical pumps fill the tank in 40 hours. How many pumps would we have to use if we wanted to save 8 hours? - Railings 82711
Seven part-timers paint 280 m of railings in 5 hours. How many meters of railing will nine part-timers paint in 4 hours? - Powerful 82250
In 5 minutes, it pumps 1240 l of water with the pump. Can two equally powerful pumps pump 500 liters of water in 1 minute? - 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? - Horses 20063
Nine horses need a lot of hay for two days. How many horses would the same amount of hay be enough for three days? - Inspectors 19633
Five inspectors will catch an average of 70 black passengers in 6 days. How many black passengers are caught by nine inspectors in 10 days? - According 17163
According to the standard, seven tiles can pave the sidewalk in 12 shifts. After three shifts, one worker went on holiday. In how many shifts were the sidewalk paved? - Part-time 6476
Specify x - the number of hours if Three part-time workers, 5 hours a day, plant 900 trees. How many hours a day do two part-time workers have to work to plant 480 trees? - Painters
Five painters painted the fence for eight days. How many days over will it take to work if they paint the fence with only four decorators?
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