A firm surveys 400 people about their favourite brand of tea. A pie chart of the results shows Brand A 35%, Brand B 25% and other brands the rest. How many people chose other brands?
- Share for other brands = 100% − 35% − 25% = 40%.
- Number of people = 40% × 400 = 0.40 × 400 = 160.
Answer: 160 people chose other brands.