A common hydrometer has a uniform stem graduated downwards from 0 1 2 upto 10 when floating in pure water it reads 0 and in a

Question

A common hydrometer has a uniform stem graduated downwards from 0 1 2 upto 10 when floating in pure water it reads 0 and in a liquid of relative density 1 5 it reads 10 What is the relative density of a liquid in which it reads 57 A 1 20 C 1 30 B 1 25 D 1 15

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