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  • Water in a canal, 6 m wide and 1·5 m deep, is flowing with a speed of 10 km/h. How much area will it irrigate in 30 minutes if 8 cm of standing water is needed?    

Water in a canal, 6 m wide and 1·5 m deep, is flowing with a speed of 10 km/h. How much area will it irrigate in 30 minutes if 8 cm of standing water is needed?

 

 
 
 
 
 

Answers (1)

Width = 6 m

Depth = 1.5 m

Speed = 10km/hr

Length of the canal in 1 hour  = 10 km

length of the canal in 30 minutes  = \mathrm{\frac{10}{2} = 5km = 5000m}

Volume of water flowing through the canal in 30 min.

                                                            = 5000\times 6 \times 1.5 = 45000m^2

Area Irrigated    = \frac{45000}{\frac{8}{100}}

                            \mathrm{= 562500 m^2}

Posted by

Safeer PP

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