Question

A canal is 300cm wide and 120cm deep the water in the canal is flowing with the speed of 30km/h.How much area will it irrigate in 30min if 8cm of standing water is desired

Answer 1

Question :-

A canal is 300cm wide and 120cm deep the water in the canal is flowing with the speed of 30km/h.How much area will it irrigate in 30min if 8cm of standing water is desired ?

Answer :-

➪ 30 hectare

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Width 300cm=3m

depth 120cm=1.2m

speed of canal 20km/h

20×1000m/h

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➪vol. of water flow in 1 hour ➾ width of canal ×depth of canal ×speef of canal water

➪3×1.2×20×1000=➾72000m³

in 20 in vol. of water flows ➾72000×20÷60 ➾24000m³

➪area irrigated in 20 min 2400÷0.08 ➾300000m²

➪30 hectare

Answer 2

$30 \: hectare$