To solve the problem, we need to determine Shubha's share of profit based on the given ratio of profit sharing and Radhika's share of profit.
The profit-sharing ratio among Radhika, Mehar, and Shubha is given as 9:8:7.
Let's assign these ratios to R, M, and S respectively. Hence, Radhika's share = 9 parts, Mehar's share = 8 parts, Shubha's share = 7 parts.
We also know Radhika's share of profit at the end of the year is Rs 5,40,000.
Using the profit ratio, we can set the equation:
Total ratio sum = 9 + 8 + 7 = 24 parts.
Now, Radhika's share = \( \frac{9}{24} \) of Total Profit.
Since \( \frac{9}{24} \) of Total Profit = Rs 5,40,000, we can solve for the Total Profit:
Let Total Profit = P, then \( \frac{9}{24}P = 5,40,000 \).
Solving for P:
\[ P = \frac{5,40,000 \times 24}{9} \]
\[ P = \frac{1,29,60,000}{9} \]
\[ P = 14,40,000 \]
Now, let's calculate Shubha's share:
Shubha's share = \( \frac{7}{24} \) of Total Profit.
\[ \text{Shubha's share} = \frac{7}{24} \times 14,40,000 \]
\[ = \frac{1,00,80,000}{24} \]
\[ = 4,20,000 \]
Thus, Shubha's share of profit will be Rs 4,20,000.