A canal is 300 cm wide and 120 cm deep. The water in the canal is flowing with a speed of 20 km/h. How much area will it irrigate in 20 min, if 8 cm of standing water is desired?
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0
may be it's answer is 2250000m
prachi132:
its answer is 450m
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3
Answer:
Step-by-step explanation:
Width 300cm=3m
depth 120cm=1.2m
speed of canal 20km/h
20×1000m/h
volume of water that flow in 1 hour = width of canal ×depth of canal ×speed 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
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