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GATE CSE 2020 Q10: Aggregate profit or loss from a revenue bar graph

Question

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 of revenue in million rupees: 2014 500, 2015 700, 2016 800, 2017 600, 2018 400
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Answer: C (official GATE 2020 final answer key)

Concept used: Percentage profit = (total revenue − total expenditure) / total expenditure × 100.

First step: Total revenue is 500 + 700 + 800 + 600 + 400 = 3000; total expenditure is 5 × 500 = 2500.

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Source: official GATE 2020 CS question paper and final answer key, organised by IIT Delhi. Question paper · Answer key

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