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Question

The radius of Jupiter is 11 times the radius of the Earth. Calculate the ratio of the volumes of Jupiter and the Earth. How many Earths can Jupiter accommodate?

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Solution

Assume Earth and Jupiter to be perfect spheres.
Let radius of Earth be Re=R.....................(i)
Radius of Jupiter RJ=11R......................(ii)

Volume of earth Ve=43πR3..............(iii)
Volume of Jupiter VJ=43πR3J
VJ=43π(11R)3=43πR3×1331..............(iv)

Dividing (iv) by (iii),
VJVe=43πR3×133143πR3
=1331

Hence, Jupiter can accommodate 1331 earths.

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