छः लड़के A, B, C, D, E और F ताश का एक खेल खेलते हैं। प्रत्येक के पास ताश के 10 पत्तों की एक गड्डी है। F, 2 पत्ते A से उधार लेता है और 5 पत्ते C को देता है, आगे C, 3 पत्ते B को देता है, जबकि B, 6 पत्ते D को देता है जो 1 पत्ता E की ओर बढ़ा देता है। अब D और E के पास ताश के जितने पत्ते हैं वे निम्नलिखित में से किस समूह के पास उपलब्ध ताश के पत्तों की संख्या के बराबर हैं?
Read this question in English
Six boys A, B, C, D, E and F play a game of cards. Each has a pack of 10 cards. F borrows 2 cards from A and gives away 5 to C who in turn gives 3 to B while B gives 6 to D who passes on 1 to E. Then the number of cards possessed by D and E is equal to the number of cards possessed by
(a) A, B and C · (b) B, C and F · (c) A, B and F · (d) A, C and F
उत्तर और व्याख्या · explanation in English
Answer: (b) B, C और F
After all the transfers A has 8, B 7, C 12, D 15, E 11 and F 7 cards. D and E together hold 26, the same as B, C and F together (7 + 12 + 7).
- Start: everyone has 10 cards.
- F borrows 2 from A: A = 8, F = 12. F gives 5 to C: F = 7, C = 15.
- C gives 3 to B: C = 12, B = 13. B gives 6 to D: B = 7, D = 16. D gives 1 to E: D = 15, E = 11.
- D + E = 15 + 11 = 26.
- B + C + F = 7 + 12 + 7 = 26. (A + B + C = 27, A + B + F = 22, A + C + F = 27.)
- Check: total = 8 + 7 + 12 + 15 + 11 + 7 = 60, the same as at the start.
Remember · Track transfers in a small table and confirm the total stays unchanged — a quick guard against slips.
Question and answer: UPSC's official GS Paper II (2017, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·