Acceleration due to gravity on the surface of moon is\[\text{1}/{{\text{5}}^{th}}\]that at the surface of the earth. If radius of the moon is\[\text{1}/{{4}^{th}}\]that of the earth, ratio of the mass of the earth to mass of moon is

Acceleration due to gravity on the surface of moon is\[\text{1}/{{\tex

1.	Acceleration due to gravity on the surface of moon is\[\text{1}/{{\text{5}}^{th}}\]that at the surface of the earth. If radius of the moon is\[\text{1}/{{4}^{th}}\]that of the earth, ratio of the mass of the earth to mass of moon is
A.	20
B.	40
C.	60
D.	80
Answer» E.

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Acceleration due to gravity on the surface of moon is\[\text{1}/{{\text{5}}^{th}}\]that at the surface of the earth. If radius of the moon is\[\text{1}/{{4}^{th}}\]that of the earth, ratio of the mass of the earth to mass of moon is

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