Q.7 In a country of 1400 million population, 70% own mobile phones. Among the mobile
phone owners, only 294 million access the Internet. Among these Internet users, only half
buy goods from e-commerce portals. What is the percentage of these buyers in the country?
(A) 10.50 (B) 14.70 (C) 15.00 (D) 50.00
Percentage of E-Commerce Buyers: 1400 Million Population Analysis
Mobile phone ownership stands at 70% of the country’s 1400 million population, but e-commerce buyers represent a smaller subset after filtering through internet access and purchasing habits. The correct percentage of these buyers in the total population is 10.50%. This calculation aligns with standard quantitative aptitude problems common in competitive exams like IIT JAM.
Step-by-Step Solution
- Total population equals 1400 million.
- Mobile phone owners are 70% of 1400 million, or
0.7 × 1400 = 980million. - Among these, 294 million access the internet, and half of them (50%) buy from e-commerce portals, yielding 0.5 × 294 = 147 million buyers.
- The percentage is then
147/1400 × 100 = 10.5%.
In a country of 1400 million population where 70% own mobile phones and 294 million among them access the internet, only half buy from e-commerce portals. This percentage of e-commerce buyers question tests nested percentage calculations, vital for exams like IIT JAM quantitative aptitude.
The key phrase “percentage of e-commerce buyers in country” highlights how 70% mobile owners narrow to just 10.50% actual online shoppers.
Why This Matters for Exam Prep
- Such problems build skills in sequential percentages.
- Start with mobile owners:
70% of 1400 = 980 million. - Internet users: Given as 294 million (about 30% of owners).
- Buyers: Half of 294 = 147 million.
- Final percentage:
147/1400 × 100 = 10.50%.
Real-World Context
India’s mobile penetration exceeds 70-85% in 2026 surveys, with growing e-commerce. This mirrors trends where not all phone owners convert to buyers.
