A metallic sphere floats in an immiscribe mixture of water `(rho_(w) = 10^(3) kg//m^(3))` and a liquid `(rho_(L) = 13.5 xx 10^(3))` with `(1//5)th portion by volume in the liquid and remaning in water. The density of the metal is :
A. `4.5 xx 10^(3) kg//m^(3)`
B. `4.0 xx 10^(3) kg//m^(3)`
C. `3.5 xx 10^(3) kg//m^(3)`
D. `1.9 xx 10^(3) kg//m^(3)`