Beta's share of the total — Aptitude Question
Beta's share of the total: | Company | 2022 | 2023 | 2024 | 2025 | |---------|------|------|------|------| | Alpha… Answer and worked solution on CodeKairo.
- Topic: Tables & Charts
- Section: Data Interpretation
- Difficulty: Medium
- Time target: 75 seconds
Question
| Company | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Alpha | 120 | 150 | 180 | 210 |
| Beta | 200 | 180 | 240 | 300 |
| Gamma | 80 | 120 | 160 | 240 |
| Delta | 160 | 200 | 180 | 250 |
In 2025, Beta's revenue was approximately what percentage of the combined total?
Options
- 25%
- 30%
- 35%
- 40%
Show the answer and the worked solution
Correct answer: B. 30%
Worked solution
- Total in 2025 = 210 + 300 + 240 + 250 = 1,000.
- Beta's share = 300/1,000 = 30%.
Answer: 30%.
The idea
Compute the total once, then divide. A total that comes out round is usually a sign the arithmetic is right.
Shortcut. Pair 210 + 250 = 460 and 300 + 240 = 540: the 2025 total is exactly 1,000, so Beta's 300 is 30% on sight.
Common trap. 40% — dividing Beta's 300 by the other three companies' 700 instead of the full 1,000 gives about 43%, which rounds to it.