Explanation:

Sure! Let’s go through the problem step-by-step:

- Volume of the pit:

The pit is 18 m long, 15 m broad, and 6 m deep.

Volume = 18 m × 15 m × 6 m = 1,620 cubic meters.

- Area of the field:

The field is 90 m long and 75 m broad.

Area = 90 m × 75 m = 6,750 square meters.

- Earth spread over the field:

The earth dug out from the pit is spread evenly over the remaining part of the field.

- Rise in level of the field:

The rise is calculated by dividing the volume of the soil by the area of the remaining field.

Rise = 1,620 m³ / 6,750 m² = 0.24 meters.

Convert meters to centimeters: 0.24 m = 24 cm.

- Conclusion:

- Option:1, 27 cm

- Option:2, 25 cm

- Option:3, 28 cm

- Option:4, 24 cm is the correct answer.