If the radius of the earth were increased by a factor of 2 keeping the mass constant, by what factor would its density have to be changed to keep g the same?

If the radius of the earth were increased by a factor of 2 keeping the mass constant, by what factors would its density have to be changed to keep g same?

If the radius of the earth were incresed by a factor of 3, by what factor would its density to be changed to keep 'g' the same ?

If the radius of the Earth were increased by a factor 5, by what factor would its density have to be changed to keep the value of acceleration due to gravity the same?

If the radius of the earth be increased by a factor of 5 , by what factor its density be changed to keep the value of g of the same?

Keeping mass unchanged if radius of the earth increases by a factor 4, then by which factor density must have to be changed so that the value of g remains same ?

If the radius of earth is reduced to 2%, keeping mass constant, then weight of the body on its surface

If the distance between two masses is increased by a factor of 4, by what factor would the mass of one of them have to be altered to maintain the same gravitational force?

If the distance between two masses is increased by a factor of 5, by what factor would the mass of one of them have to be altered to maintain the same gravitational force? Would this be an increase or decrease in the mass?