A rectangular tank measuring (5m x 4.5m x 2.1m) is dug in the center of the field measuring 13.5m x 2.5m. The earth dug out is spread evenly over the remaining portion of the field. By how much is the field's level raised?
Q1. A rectangular tank measuring (5m x 4.5m x 2.1m) is dug in the center of the field measuring 13.5m x 2.5m. The earth dug out is spread evenly over the remaining portion of the field. By how much is the field's level raised?
Answer: 4.2m
Explanation: Volume of excavated earth = 5×4.5×2.1 = 47.25 m³; remaining field area = 13.5×2.5 − 5×4.5 = 11.25 m². Rise = 47.25/11.25 = 4.2 m.