What happens to garavitational force between two bodies, when mass of each is made three times and distance between them is reduced to `(1)/(3)`rd ? Is the value of G affected ?

Explanation

From `F=(Gm_(1)m_(2))/d^(2)`
`F'=(G(3m_(1))(3m_(2)))/((d//3)^(2))=81(Gm_(1)m_(2))/d^(2)=81 F`