Related Questions

3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
ক 9
খ 10
গ 11
ঘ 12
3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
ক 9
খ 10
গ 11
ঘ 12
3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?
ক 10
খ 11
গ 12
ঘ 9
3 pumsps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the same tank in 1 day?
ক 9 hours
খ 10 hours
গ 11 hours
ঘ 12 hours
3 pums, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
ক 9
খ 10
গ 11
ঘ 12
2 large and 1 small pumps can fill a water tank in 4 hours. 1 large and 3 small pumps can also fill the same water tank in 4 hours . How many hours will it take for 3 large 4 small pumps to fill the tank?
ক 2 hours
খ 2.5 hours
গ 3 hours
ঘ 3.5 hours
2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same water tank in 4 hours. how many hours will it take for 3 large and 4 small pumps to fill the tank?
ক 2 hours
খ 2.5 hours
গ 3 hours
ঘ 3.5 hours
A tank is fitted with 8 pipes, some of them that fill the tank and others that are waste pipe meant to those that empty the tank can empty it in 6 hours. If all the pipes are kept open when the tank is full, it will take exactly 6 hours for the tank to empty. How many of these are these are fill pipes?
ক 2
খ 4
গ 6
ঘ 5
If 18 pumps can raise 2170 tonnes of water in 10 days , working 7 hours a day ; in how many days will 16 pumps raise 1736 tonnes of water , working 9 hours a day ?
ক 6
খ 7
গ 8
ঘ 9
An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank?
ক 33.5%
খ 37.5%
গ 40%
ঘ 50%

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