Assuming the radius of the earth to be `6.38 xx 10^(8) cm`, the gravitational constant to be `6.67 xx 10^(-8) cm^(3) g^(-1) s^(-2)`, acceleration due to gravity on the surface to be `980 cm / s^(2)`, find the mean density (in `(g) / (cm)^(3)` ) of the earth.

Answer

5.49