Five pumps within 3 hours vykayevat 27 cubic meters of water from the channel. How many water will be extorted by four such pumps within 5 hours???

68
27÷3=9 м^3 extort 5 pumps in one hour 9:5 = 9/5м^3 extorts 1 pump for an hour 9/5*5 = 9м^ extorts 1 pump in 5 hours 9*4=36 м^3 extort 4 pumps in 5 hours
3
Answer add