Question

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

Answer 1

Explanation:

The measurement need both a number is and a unit because if we say 10 , the other person will not understand what it means , he is confused that it is a mass or distance or speed , Hence we used a unit like metre , second. Now if we say 10 second then other person understand very well that we talk about time .

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Answer 2

Answer:

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.

Explanation: