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The volume of spherical balloon being...

The volume of spherical balloon being inflated changes at a constant rate. If initially its radius is 3 units and after 3 seconds it is 6 units. Find the radius of balloon after t seconds.

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The correct Answer is:
`r=[9(7t+3)]^(1//3)`, which is the radius after 't' seconds.
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MODERN PUBLICATION-DIFFERENTIAL EQUATIONS-NCERT - FILE (Questions from NCERT Book) (Exercise 9.4)
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