Study the table of exports (in units) from three companies over the years 2017 to 2021.![Screenshot 2025-05-28 123304.png](https://res.cloudinary.com/aptidude/image/upload/v1748415825/aptidude_questions/eumjvaokntjweqlbdkju.png) For which of the following pairs of years are the total exports from the three companies together equal?

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Accepted Answer

Step 1: Calculate total exports for each year by summing exports of Companies P, Q, and R.

- 2017: 2000 + 1500 + 1400 = 4900
- 2018: 4000 + 3000 + 2000 = 9000
- 2019: 2000 + 1500 + 2000 = 5500
- 2020: 3000 + 3000 + 3000 = 9000
- 2021: 4000 + 3000 + 3000 = 10000

Step 2: Check the pairs:
- 2020 and 2021: 9000 vs 10000 (not equal)
- 2018 and 2019: 9000 vs 5500 (not equal)
- 2017 and 2018: 4900 vs 9000 (not equal)
- 2018 and 2020: 9000 vs 9000 (equal)

Therefore, the total exports from the three companies are equal in the years 2018 and 2020.

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