5 व्यक्तियों के किसी एक परिवार में प्रति व्यक्ति औसत आय रु॰ 10,000 प्रति मास है। उसी परिवार में प्रति व्यक्ति औसत आय क्या होगी यदि किसी एक व्यक्ति की आय में रु॰ 1,20,000 प्रति वर्ष की वृद्धि हो जाती है ?
Read this question in English
The average monthly income of a person in a certain family of 5 is Rs. 10,000. What will be the average monthly income of a person in the same family if the income of one person increased by Rs. 1,20,000 per year?
(a) Rs. 12,000 · (b) Rs. 16,000 · (c) Rs. 20,000 · (d) Rs. 34,000
उत्तर और व्याख्या · explanation in English
Answer: (a) रु॰ 12,000
A rise of Rs. 1,20,000 a year is Rs. 10,000 a month. Shared across 5 people it lifts the monthly average by Rs. 2,000, from Rs. 10,000 to Rs. 12,000.
- Family's monthly income = 5 × Rs. 10,000 = Rs. 50,000.
- Rs. 1,20,000 a year = Rs. 10,000 a month.
- New average = (50,000 + 10,000) ÷ 5 = Rs. 12,000.
Remember · Put all figures in the same time unit first; the average then rises by the increase divided by the number of people.
Question and answer: UPSC's official GS Paper II (2016, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·