What is the time taken by a planet to sweep an area of 2 million square km if the time taken by the same planet to cover an area of 1 million square km is 36 hours? a) 18 hours b) 36 hours c) 72 hours d) 144 hours
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What is the time taken by a planet to sweep an area of 2 million square km if the time taken by the same planet to cover an area of 1 million square km is 36 hours?
a) 18 hours
b) 36 hours
c) 72 hours
d) 144 hours
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