Q. 404.6( 11 Votes )

Answer :

Speed of flowing water =10 km/hr

In 30 minutes length of flowing water =10× km

= 5 km = 5000 m

Volume of flowing water in 30 minutes =5000 × width × depth

Width of canal = 1.5 m

Depth of canal = 6 m

Volume of canal =5000 × 1.5 × 6 m^{3}

= 45000 m^{3}

Irrigated area in 30 minutes if 8 cm of flowing water is required

= 562500 m^{2}

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PREVIOUSA well with inner radius 4 m is dug 14 m deep. Earth taken out of it has been spread evenly all around a width of 3 m it to form an embankment. Find the height of the embankment.NEXTA farmer runs a pipe of internal diameter 20 cm from the canal into a cylindrical tank in his field which is 10 m in diameter and 2 m deep. If water flows through the pipe at the rate of 3 km / h, in how much time will the tank be filled?