The table shows income, expenditure (rupees million) and profit percentage of a company, 2017 to 2022. The profit percent in 2022 rose by 33 and one-third percent over the previous year. Dashes are missing values to be calculated if required.
| Year | Income | Expenditure | Profit (%) |
|---|---|---|---|
| 2017 | 103.824 | — | 12 |
| 2018 | — | 83.8 | 25 |
| 2019 | 95.76 | 84 | — |
| 2020 | 113.28 | — | 20 |
| 2021 | 133.1 | 110 | — |
| 2022 | 121.6 | — | — |
What is the average expenditure (in rupees million) of the company for the five years from 2018 to 2022?
The average expenditure is 93.44, so the answer is 93.44.
Expenditure is income divided by one plus the profit rate, since profit is charged on cost.
For 2020, income 113.28 at 20% profit gives expenditure 94.4.
The 2021 profit is 21%, so the 2022 profit is 21% raised by one-third, which is 28%.
For 2022, income 121.6 at 28% profit gives expenditure 95.
The five expenditures for 2018 to 2022 are 83.8, 84, 94.4, 110 and 95, summing to 467.2.
The average is 467.2 divided by 5, which is 93.44.
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