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 speed every over the remaining portion of the field raised?

Community credibility

Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.