Question

Why does measurement need both a 'number' and a 'unit' for its complete specification?​

Answer 1

A measurement needs both a number and a unit for complete specification because : If we just say 6, the other person will not understand what we mean; hence we have to use a unit of length. If we just say metres, the person will wonder how many metres; therefore we have to tell the number to express the right quantity.

Answer 2

hope this will help you. mate