Find the volume of the following addition with due consideration of significant figures `0.75+2.128+15.6`.

Explanation

as this is sum, we have to consider decimal places.
Here `15.6`has one decimal place.
Here `2.128` is to be rounded off to `1+1=2`decimal places and `0.75 `should be left as it is
`:.2.128=2.13`
`0.75+2.13+15.6=18.48`.
this is to rounded off to one decimal place. The result is `18.5`.