GATE CS 2020 Q.10 (GA Q.10): Data Interpretation and Graphs

The total revenue of a company during 2014-2018 is shown in the bar graph. If the total expenditure of the company in each year is 500 million rupees, then the aggregate profit or loss (in percentage) on the total expenditure of the company during 2014-2018 is _______.

Bar graph showing annual company revenue in million rupees for years 2014 to 2018 — Company revenue from 2014 to 2018

16.67 % profit

16.67 % loss

20 % profit

20 % loss

Official answer and solution

Official answer: C
From: Official GATE 2020 answer key

Solution

Compute total revenue and total expenditure over the 5-year period 2014-2018 to calculate aggregate profit percentage.

Read the annual revenues from the bar graph for 2014 to 2018:

2014: 500 million rupees
2015: 700 million rupees
2016: 800 million rupees
2017: 600 million rupees
2018: 400 million rupees

Total revenue = $500 + 700 + 800 + 600 + 400 = 3000$ million rupees.

Expenditure is 500 million rupees in each year. For the 5 years:

\text{Total expenditure} = 5 \times 500 = 2500\text{ million rupees}

Aggregate profit = $\text{Total revenue} - \text{Total expenditure} = 3000 - 2500 = 500$ million rupees.

\text{Profit percentage} = \frac{500}{2500} \times 100\% = 20\%\text{ profit}

Final answer

The answer is the one in the official GATE answer key. The solution is this site's own explanation.

Source

Paper: GATE 2020 Computer Science and Information Technology (CS)
Question: 10 of 65, printed as GA Q.10
Section: General Aptitude

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