What is the Density of a Mixture of Two Liquids in a 1:3 Ratio?

[dude123]

Homework Statement

In a mixture of 100 gm , 2 liquids are mixed in ratio 1:3 of their masses . If densities of liquids are 1.25gm/cc and 0.6gm/cc , find the density of mixture.

Homework Equations

D = mass/Volume

The Attempt at a Solution

mass = 100g
let m₁ = x , m₂ = 3x
d₁ = 1.25 gm/cc , d₂ = 0.6gm/cc
mass = m₁+m₂
100= 4x
100/4 = x
m₁ = 25, m₂ = 75
V₁= 25/125*100 = 20cm³
V₂ = 75/6*10 = 125cm³
d = mass/volume
= 100/145 = 20/29 = 0.6gm/cc

is that ^^ correct?

 

[rl.bhat]

d = mass/volume
= 100/145 = 20/29 = 0.6gm/cc

Correct. But wright as 0.69 gm/cc

 

[dude123]

ok , thank you :)