Pumps

Five pumps pumped 1,800 hl of water for 3 hours. How many hectoliters of water pump same two powerful pumps for six hours?

Correct result:

x =  1440 hl

Solution:

$$\begin{gathered} p_1=1800\mathrm{/}3\mathrm{/}5=120 \\ x=2\cdot 6\cdot p_1=2\cdot 6\cdot 120=1440\text{ hl} \end{gathered}$$

Try another example

Showing 0 comments:

Next similar math problems:

• Pumps
  After the floods, four equally powerful pumps exhausted water from the flooded cellar in 6 hours. How many hours would take a drained out with three equally powerful pumps?
• Pumps 5
  5 pump pumped in 3 hours 1800 hl of water. How many hectoliters of water pumped 4 equally powerful pumps in 6 hours?
• Five pumps
  The water tank is filled with two pumps in 48 minutes. How long would it take to fill it with 5 same pumps?
• 5 pumps
  Five pump to pump 3 hours 1600 hl of water. How long pumped same amount of water 4 pumps?
• Electric energy
  There are 875 identical light bulbs in the sports hall lighting for 2 hours. How long does the same amount of electricity consume 100 such bulbs?
• Cook on gas
  The gas cylinder will last for 30 weekends for 2 hours of daily cooking. How many days will we be able to cook on a new cylinder when we cook 3 hours a day?
• Pumps 3
  Two pumps of the same power fill the garden pool for 10 hours. How many of these pumps would have to use if we want to shorten the filling of the pool to four hours?
• Painting rooms
  If Dano paint three hours daily given work he complete in 7.5 days. How many hours a day would have to work to finish the job 1.5 days earlier?
• Five combers
  Five combers harvest 12 rows of strawberries in 4 hours. How many rows of strawberries will two combers harvest in 10 hours?
• New computer
  New computer process a certain amount of data for 6 hours. For how many hours will process the same amount of data older computer that has a quarter lower performance?
• Ratios
  Reduce the numbers: 50 in a 1:2 ratio 111 at a ratio of 2:3 70 at 10:50 560 at a ratio of 3:8
• Six workers
  Six workers earned a total of CZK 12,600 per week on the construction site (5 working days). How much do 7 workers earn in 10 days with the same daily average salary?
• Painters
  Ten painters paint the school in 20 days. How many days do four painters paint the school at the same pace of work?
• Proportion 3
  For every 8 mango trees in the orchard, there are 4-star apple trees. If there are 1320 trees, how many trees of each kind are there?
• Study
  For 7 hours study, she scored a 75 so if she made 93 how many hours would she need to study?
• Hectoliters of water
  The pool has a total of 126 hectoliters of water. The first pump draws 2.1 liters of water per second. A second pump pumps 3.5 liters of water per second. How long will it take both pumps to drain four-fifths of the water at the same time?
• 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 6 masons in 4 hours?