Question

A truck whose bed is 2.5 m long, 1.5 m wide, and 1.0 m high is delivering sand for a sand-sculpting competition. About how many trips must the truck make to deliver 7 m of sand.

Answer 1

Assuming you mean 7m^3 (meters cubed) of Sand:

Volume = base x width x height

The truck can hold a volume of 2.5 x 1.5 x 1 = 3.75 m^3.

To move 7 m^3 of sand, the truck will have the make two trips. The first trip, the truck will move 3.75 m^3 of sand, and on the second, it will move 7-3.75=3.25 m^3.