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# A merchant pays $9\%$ commission and $4\%$ del-credere to his agent. If the agent sells the goods of $Rs.55000$, find the total earnings of the agent.

Let’s try to understand the question first. According to the question, the merchant pays $9\%$ commission and $4\%$ del-credere to the agent, i.e. the merchant will pay $9\%$ of the sale as commission to the agent and $4\%$ of the sales as del-credere to the agent.
Given that agent sells goods of $Rs.55000$ and the merchant will give $9 + 4 = 13\%$ of this sell to the agent
For understanding the concept of $13\%$ percentage, just imagine dividing a quantity into a hundred equal parts and taking $13$ parts from it. Basically, one per cent is one-hundredth of a whole.
So, for calculating $13\%$ of the sale, we need to multiply $\dfrac{{13}}{{100}}$ to the total amount of money
$\Rightarrow 13\%$ of $Rs.55000$$= \dfrac{{13}}{{100}} \times 55000 = 13 \times 550$
Amount earned through commision $= 13 \times 550 = Rs.7150$
Hence, the total earnings of the agent will be $Rs. 55000$ + $Rs.7150$ which is $Rs.62150$