A rectangular tank measuring `5m xx 4. 5 m xx 2. 1 m ` is dug in the centre of the field measuring `13. 5 m xx 2. 5 m` . The earth dug out is spread evenly over the remaining portion of the field. How much is the level of the field raised?

Explanation

To solve the problem step by step, we will calculate the volume of the rectangular tank, the area of the field, the area of the tank, and finally determine how much the level of the field is raised after spreading the dug-out earth.

### Step 1: Calculate the Volume of the Tank
The volume \( V \) of a rectangular tank can be calculated using the formula:
\[ V = \text{length} \times \text{breadth} \times \text{height} \]
Given:
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