Question

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

Answer 1

Answer:

for unit i know

Explanation:

if suppose your name is abhishek and i say abhishek 50 so from this you will not know that i am talking about wheight height or other things and when i will say abhisek 50 cm means it is talking about your height so unit is needed

Answer 2

$\huge\mathbb{ANSWER:-}$

• Measurement need both a 'number' and a 'unit' for its complete specification as the former number tells us as to how many times does unit get contained in the length to be measured.