How many pounds in 90 ton?

Answer 1

The question, as stated, cannot be answered sensibly. A litre is a measure of volume, with dimensions [L3]. A ton is a measure of mass, with dimensions [M]. The two measure different things and basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.

As a simple mental exercise consider a litre of air and of water. They will have very different masses.

Answer 2

There are 2000 pounds in a ton. Therefore 90 tons is 90 x 2000 pounds or 180,000 pounds.

Answer 3

There are 180,000 pounds in 90 tons.