Question

Aluminium weighs around __________ of steel.

(a) 2 times

(b) 1/2

(c) 1/3

(d) 4 times

The question was asked during an interview.

Question is taken from Wrought Aluminium and it’s Alloys topic in section Wrought Aluminium Alloys of Aerospace Materials & Processes

Answer 1

Right option is (c) 1/3

For explanation I would say: One of the most important advantages of aluminium is its weight. Aluminium weighs less than steel. But steel is stronger compared to aluminium. Steel weighs almost three times the weight of aluminium.