GATE CS 2020 QGA-10 — General Aptitude

To find the aggregate profit or loss percentage, we first calculate the total revenue and the total expenditure over the five-year period from $2014$ to $2018$.

Step 1: Calculate the Total Revenue
From the bar graph, the revenues (in million rupees) for each year are:

• 2014: $500$
• 2015: $570$
• 2016: $670$
• 2017: $600$
• 2018: $660$

Step 2: Calculate the Total Expenditure
The expenditure for each of the $5$ years is $500$ million rupees. $$\text{Total Expenditure} = 5 \times 500 = 2500 \text{ million rupees}$$

Step 3: Calculate the Aggregate Profit
Since the total revenue is greater than the total expenditure, the company made a profit: $$\text{Aggregate Profit} = \text{Total Revenue} - \text{Total Expenditure}$$ $$\text{Aggregate Profit} = 3000 - 2500 = 500 \text{ million rupees}$$

Step 4: Calculate the Profit Percentage
The profit percentage on the total expenditure is: $$\text{Profit Percentage} = \left( \frac{\text{Aggregate Profit}}{\text{Total Expenditure}} \right) \times 100$$ $$\text{Profit Percentage} = \left( \frac{500}{2500} \right) \times 100 = 20\% \text{ profit}$$

Therefore, the correct option is C.