[Revenue Patwari Pre Aug, 2021]

6. A plot of land in the form of a rectangle has dimensions 240 m x 180 m. A drainlet 10 m wide is dug all around it (outside) and the earth dug out is evenly spread over the plot, increasing its surface level by 25 cm. The depth of the drainlet is :

1. 1.223 m

2. 1.225 m

3. 1.227 m

4. 1.229 m

Correct Answer :

1.227 m