Multiple choice

Each of the questions consists of a question followed by three statements. You have to study the questions and the statements and decide which of the statements(s) is/are necessary to answer the question. How many workers are required for completing the construction work in 10 days? I. 20% of the work can be completed by 8 workers in 8 days II. 20 workers can complete the work in 16 days III. One eighth of the work can be completed by 8 workers in 5 days प्रत्येक प्रश्न में एक प्रश्न के बाद तीन कथन दिए गए हैं। आपको प्रश्नों और कथनों का अध्ययन करना है और यह निर्णय करना है कि प्रश्न का उत्तर देने के लिए कौन से कथन आवश्यक हैं। 10 दिनों में निर्माण कार्य पूरा करने के लिए कितने श्रमिकों की आवश्यकता है? I. काम का 20% 8 दिनों में 8 श्रमिकों द्वारा पूरा किया जा सकता है II. 20 कर्मचारी 16 दिन में पूरा कार्य कर सकते हैं III. काम का एक आठवां काम 5 दिनों में 8 श्रमिकों द्वारा पूरा किया जा सकता है

  1. I and II only केवल I तथा II

  2. II and III only केवल II तथा III

  3. I only केवल I

  4. III only केवल III

  5. Any one of three तीनों में से कोई एक
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Statement I: 20% work by 8 workers in 8 days means 0.2W = 8 × 8 = 64 worker-days, so W = 320 worker-days. For 10 days: workers = 320/10 = 32. Statement II: 20 workers in 16 days gives W = 320 worker-days, so for 10 days: workers = 320/10 = 32. Statement III: 1/8 work by 8 workers in 5 days means W/8 = 40 worker-days, so W = 320 worker-days, giving workers = 32 for 10 days. Each statement alone is sufficient.

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