Calculate the relative density of the liquid from the following information

Calculate the relative density of the liquid from the following information
Mass of empty relative density bottle M1 = 24.5
Bottle with water mass M2 = 56.2g
Bottle with liquid M3 = 51.2g

The density of substance is compared with the density of water to get a number which is called relative density of that substance.
To determine the relative density of liquid relative density of bottle is used.
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Thus relative density of given liquid = 0.911