Explanation:

- To compute the manager's commission, we first need to find the profit before charging his commission.

- If the net profit after commission is Rs 49,500, this means the profit before commission can be represented as x .

- The manager receives 10% of this amount, and the profit after commission is given by the equation:

x - 0.10x = 49,500   

0.90x = 49,500

x = 49,500 / 0.90

x = 55,000

- The manager's commission is 10% of Rs 55,000= Rs 5,500.