A river 1.5 m deep and 36 m wide is flowing at the rate of 3.5 km/hr. Find the amount of water (in cubic metres) that runs into the sea per minute.

Question

Philoid · Accepted Answer

Given,

Depth of the river = 1.5 m

Width of the river = 36 m

Flow rate of river = 3.5 km/hr

Now first change the rate of flow of the water in meter/min

As we know,

1 km = 1000 m

1 hour = 60 minutes

So,

River travel in a minute = 350/6 m

Now,

The amount of water that runs into sea per minute;

350/6 × 1.5 × 36 = 350 × 1.5 × 6 = 3150

So,

The amount of water that runs into the sea per minute is 3150 m³