A ratio across two years — Tables & Charts Aptitude Question
A ratio across two years: | Company | 2022 | 2023 | 2024 | 2025 | |---------|------|------|------|------| | Alpha |… Answer and worked solution on CodeKairo.
- Topic: Tables & Charts
- Section: Data Interpretation
- Difficulty: Easy
- Time target: 60 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 |
What is the ratio of Gamma's 2023 revenue to Delta's 2023 revenue?
Options
- 2 : 3
- 3 : 5
- 3 : 4
- 4 : 5
Show the answer and the worked solution
Correct answer: B. 3 : 5
Worked solution
- Gamma = 120, Delta = 200.
- 120 : 200 = 12 : 20 = 3 : 5.
Answer: 3 : 5.
The idea
Reduce the ratio fully before matching it to an option. Dividing both sides by their HCF, 40, gives the simplest form at once.
Shortcut. Back-check the option: 3 : 5 means Gamma is 60% of Delta, and 60% of 200 is 120.
Common trap. 2 : 3 — pairing Gamma's 120 with Delta's 2024 figure (180) instead of its 2023 figure (200).