If the accelaration due to gravity becomes 4 times its original value, then escape speed

At what depth from earth's surface does the acceleration due to gravity becomes 1/4 times that of its value at surface ?

At what depth from earth's surface does the acceleration due to gravity becomes 1/4 times that of its value at surface ?

The height vertically above's surface at which the acceleration due to gravity becomes 1% of its value at the suuface is

The depth d , at which the value of acceleration due to gravity becomes 1/n times the value at the surface is (R = radius of the earth)

The depth d , at which the value of acceleration due to gravity becomes 1/n times the value at the surface is (R = radius of the earth)

At what depth below the surface of earth the acceleration due to gravity becomes one-third of its value at the surface of earth ?

At what depth below the surface does the acceleration due to gravity becomes 70% of its value in the surface of earth ?