Calculating Specific Gravity and Density of a Body

[Poquinha]

Homework Statement

If you have a body that weighs 100 N dipped in oil that has density equal to 0.8 g / cm³. This same body when immersed in water begins to weigh 60 N. How do I find the density / specific body mass?

Homework Equations

Solution= 1,3 g/cm³

The Attempt at a Solution

Already tried using the formula of the apparent weight = actual weight - buoyant and not worked.

 

[gneill]

You'll have to show details of your attempt. How do you know it didn't work?