Two sitar strings A and B playing the note 'Ga' are slightly out of tune and produce beats of frequency 6 Hz. The tension in the string A is slightly reduced and the beat frequency is found to reduce to 3 Hz. If the original frequency of A is 324 Hz, what is the frequency of B?

Explanation

To solve the problem, we need to determine the frequency of string B based on the information provided about the beat frequencies and the original frequency of string A.

### Step-by-Step Solution:

1. **Identify the given data:**
- Original frequency of string A, \( f_A = 324 \, \text{Hz} \)
- Initial beat frequency, \( f_{beat1} = 6 \, \text{Hz} \)
- Reduced beat frequency after tension is decreased, \( f_{beat2} = 3 \, \text{Hz} \)
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