At what height from the ground will the value of ‘ g ’ be the same as that in 10 km deep mine below the surface of earth

At what height above the earth's surface, the value of g is same as in mine 80 km deep?

At what height from the surface of earth will the value of g becomes 40% from the value at the surface of earth. Take radius of the earth = 6.4 xx 10^(6) m .

At which height above earth's surface is the value of 'g' same as in a 100 km depp mine ?

At which height above earth's surface is the value of 'g' same as in a 100 km dip mine ?

At which height above earth's surface is the value of 'g' same as in a 100 km depp mine ?

At what height from the surface of earth the value of g is same as at a depth of (R )/(4) ?

At what depth below the surface of the earth, is the value of g same as that at a height of 10km from the surface of the earth?

At what height from the surface of earth will the value of g be reduced by 36% from the value on the surface? Take radius of earth R = 6400 km .