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UPSC CSE CSAT 2019 · Paper II (CSAT) · Question 31 · Arithmetic: percentage, ratio, averages, time & work

किसी क्लब के सभी सदस्य मुंबई गए और एक होटल में रुके । पहले दिन 80% खरीदारी के लिए गए और 50% पर्यटन…

UPSC Civil Services (Preliminary) Examination 2019, General Studies Paper II (CSAT), Question 31 — Arithmetic: percentage, ratio, averages, time & work.

किसी क्लब के सभी सदस्य मुंबई गए और एक होटल में रुके । पहले दिन 80% खरीदारी के लिए गए और 50% पर्यटन के लिए गए, जबकि 10% ने होटल में विश्राम किया । उपर्युक्त आँकड़ों से, निम्नलिखित में से कौन-सा/से निष्कर्ष निकाला/निकाले जा सकता/सकते है/हैं ?

  1. 1.40% सदस्य खरीदारी के साथ-साथ पर्यटन के लिए भी गए ।
  2. 2.20% सदस्य केवल खरीदारी के लिए गए ।

नीचे दिए गए कूट का प्रयोग कर सही उत्तर चुनिए :

Read this question in English

All members of a club went to Mumbai and stayed in a hotel. On the first day, 80% went for shopping and 50% went for sightseeing, whereas 10% took rest in the hotel. Which of the following conclusion(s) can be drawn from the above data?

1. 40% members went for shopping as well as sightseeing.

2. 20% members went for only shopping.

Select the correct answer using the code given below:

(a) 1 only · (b) 2 only · (c) Both 1 and 2 · (d) Neither 1 nor 2

उत्तर और व्याख्या · explanation in English

Answer: (a) केवल 1

Since 10% only rested, 90% went shopping, sightseeing or both. Shopping and sightseeing together add up to 130%, so 40% did both, and 80 − 40 = 40% did only shopping — not 20%.

  1. Members who went out = 100% − 10% = 90%.
  2. Both = 80% + 50% − 90% = 40%.
  3. Only shopping = 80% − 40% = 40%.
  4. Check: only shopping 40 + only sightseeing 10 + both 40 + rest 10 = 100.
  • ✓ 1. 80 + 50 − 90 = 40% did both.
  • ✗ 2. Only shopping is 80 − 40 = 40%, not 20%.

Remember · Both = A + B − (at least one); get 'at least one' by removing the 'neither' group first.

Question and answer: UPSC's official GS Paper II (2019, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·

Cite this question: UPSC CSE CSAT 2019, Q31 — minimalistias.com/pyqs/csat/2019/q31

In the UPSC syllabus: Arithmetic: percentage, ratio, averages, time & work › Percentages, profit & loss See it and tick it covered →

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