Question

# A river $3m$ deep and $40m$ wide is flowing at the rate of $2km/h$. How much water will fall into the sea in a minute?

Open in App
Solution

## Given,Depth of river, $h=3m$Width of the river, $b=40m$Rate of water flow $=2km/hour$ Step 1: Find out how much water will fall into the sea in a minute.Rate of water flow $=2km/hour$ $=\frac{2000}{60}m/min\phantom{\rule{0ex}{0ex}}=\frac{100}{3}m/min$Now, the Volume of water flowing in $1$ $min$ $=$ $\frac{100}{3}×40×3$ $=$ $4000{m}^{3}$Therefore, $4000{m}^{3}$of water will fall into the sea in a minute.

Suggest Corrections
130