Whater flow in a tank 150m×100m at the base through a pipe whose cross section is 2dm by 1.5dm at the speed of 15km/hr.In what time will be the water be 3m deep?
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Answered by
2
V of tank =1500×1000×30
=45000×1000
=45000000dm cube
V of water in pipe after 1 hour =2×1. 5×150
=2×15×15=450dm cube
V of tank /V of water in pipe in 1hour =45000000/450=100000hrs.
=45000×1000
=45000000dm cube
V of water in pipe after 1 hour =2×1. 5×150
=2×15×15=450dm cube
V of tank /V of water in pipe in 1hour =45000000/450=100000hrs.
Answered by
40
Volume of the water to be filled:
Volume = Length x Breadth x Height
Volume = 150 x 100 x 3 = 45000 m³
Convert dm to m:
2 dm = 0.2m
1.5 dm = 0.15 m
Find the area of the pipe:
Area = Length x Breadth
Area = 0.2 x 0.15 = 0.03 m²
Find the amount of water flow in 1 hour:
15 km/hour = 15,000 m/hour
1 hour = 15,000 x 0.03 = 450 m²
Find the amount of time needed to fill the tank to 3m deep:
Number of hours = 45000 ÷ 450 = 100 hours
Answer: 100 hours
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