Time + simple proportion - practice problems - page 5 of 7
Number of problems found: 138
- Bricklayers 18773
According to the standard, we calculated that two masons would plaster the corridor of the new school building in 54 hours. How long would it take for nine bricklayers to plaster this corridor? - Consumption 18743
With the consumption of 0.4 t of coal per day, the supply lasts for 36 days. How many days will the supply be enough if 16 kg of coal is used less daily? - 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? - Highway calculation
How many meters does a car travel on the highway at a speed of 130 km/h per second (use a simple proportion)?
- Cylinder-shaped 12761
During the experiment, water flows evenly into a cylinder-shaped container. At the end of the 5th minute of the experiment, the water level was 25% higher than at the beginning of the experiment. 0 how many percent higher will the water level be at the en - 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? - Painters Ten painters will paint the school in 20 days. How many days do four painters paint the school at the same pace of work?
- Mother and daughter
The mother is 44 years old, and her daughter is 14. How many years ago was the mother four times older than her daughter? - Technicians 8382
The order required six technicians to complete it in 18 days. How long will it take for one, two, three, four, five, six, eight, ten, and twenty technicians to complete it?
- Tourist
A tourist walked an average speed of 3.5 km/h route in 6 hours. Calculate how many hours he would have passed at an average speed of 5.5 km/h. - Cook on gas
The gas cylinder will last 30 weekends for 2 hours of daily cooking. How many days will we be able to cook on a new cylinder when we cook for 3 hours a day? - Liters 8126
At 23:45, the pump pumps 435.4 liters of blood. How many liters of blood does he pump per day? How many liters of blood does he pump in a week? - The work
The work was to be done by 150 workers. At the beginning of their work, The company reduced their number by 40, which increased the work time by 5 and 1/3 of the schedule. How long did the work take? - Four workers
Four workers lay on the gym floor for six hours. After an hour of working together, one of the workers went to the doctor. How long will it take for the remaining three workers to complete their work?
- Twenty-four 8069
Twenty-four combers combed the hop garden in 6.5 days. How many combers would have to work on combing the hop garden in 5 days? - 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? - Ten cashiers
Ten cashiers are open at Tesco. Customers wait an average of 15 minutes. How many other cashiers have to open to reduce the waiting time by 4 minutes? - Five mechanics
Five mechanics will make a car for some time. How many cars can 30 mechanics produce at the same time? - Pumps
After the floods, four equally powerful pumps exhausted water from the flooded cellar in 6 hours. How many hours would it take to drain out with three equally powerful pumps?
The tank can be filled with five equally powerful inlets. If four inlets fill the tank, it takes 30 minutes to fill one-third of the tank. How many minutes does it take to fill an empty tank if it is filled with all five inlets?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
