A Low Land, 48 m Long and 31.5 m Broad is Raised to 6.5 dm :
A low land, 48 m long and 31.5 m broad is raised to 6.5 dm. For this, earth is removed from a cuboidal hole, 27 m long and 18.2 m broad, dug by the side of the land. The depth of the hole will be
- 2.2 m
- 3 m
- 2 m
- 2.5 m