Question

Water in canal 3m wide and 1.2m deep flowing with a speed of 10 km/hr. How much area will it irrigate in 30 minutes, if 8cm of standing water is required?

Step by Step answer with clear and brief explanation will be marked as BRAINLIEST.

Answer 1

Answer:

225000 m²

Step-by-step explanation:

Depth = 1.2m

width =  3m

flow velocity = 10km/h = 10,000 m/h

time = 30minute = 0.5 hour

standing water required = 8cm = 0.08m

Let the area = A m²

Volume of water will be same

1.2m × 3m × 10,000 m/h × 0.5 h = A × 0.08

⇒ A = 18000/0.08

⇒ A = 225000 m²