Calculate the work down against surface tension in blowing a soap bubble from a radius of `10 cm` to `20 cm`, if the surface tension of soap solution in `25xx10^(-3)N//m`.

Explanation

To calculate the work done against surface tension in blowing a soap bubble from a radius of 10 cm to 20 cm, we can follow these steps:

### Step 1: Understand the formula for work done against surface tension
The work done (W) against surface tension (T) when changing the radius of a soap bubble is given by the formula:
\[ W = T \times \Delta A \]
where \(\Delta A\) is the change in surface area of the bubble.

### Step 2: Calculate the initial and final surface areas
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