A rectangular tank is `225 m` by 162m at the base. With what speed must water flow into it through and aperture 60cm by 45cm that the level may be raised 20cm in 5 hours.?

Explanation

To solve the problem step by step, we need to determine the speed at which water must flow into a rectangular tank to raise the water level by 20 cm in 5 hours.

### Step 1: Calculate the volume of water needed to raise the level of the tank by 20 cm.

The dimensions of the tank are:
- Length (L) = 225 m
- Width (W) = 162 m
- Height increase (H) = 20 cm = 0.2 m (since we need to convert cm to m)
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