The Surface Area of a Balloon..... | JEE Main 2022 | Maxima

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JEE MAIN 2022

24-06-2022 S1

Question

The surface area of a balloon of spherical shape being in flated, increases at a constant rate. If initially, the radius of balloon is 3 units and after 5 seconds,, it becomes 7 units, then its radius after 9 seconds is :

Select the correct option:

A

9

B

10

C

11

D

12

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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