Multiple choice

A contractor undertakes to do a piece of work in 40 days. He engaged 100 men and after 35 days he engaged an additional 100 men and complete the work. How many days behind the schedule would the work have been if he had not engaged the additional men ? एक ठेकेदार एक काम को 40 दिन में कराने का ठेका लेता है, और 100 आदमी काम पर लगा देता है । 35 दिन बाद वह अतिरिक्त 100 आदमी लगाकर कार्य को समाप्त करवा देता है। यदि वह अतिरिक्त आदमी काम पर न लगाता तो काम निर्धारित अवधि के कितने दिनों बाद समाप्त होता?

  1. 20

  2. 15

  3. 10

  4. 5
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let total work = 1. After 35 days with 100 men: completed = 7/9. Remaining work = 2/9. With additional 100 men (total 200), they finish in 5 days. If only 100 men continued, remaining 2/9 would take 10 more days. Total = 35 + 10 = 45 days, which is 5 days behind schedule (45 - 40 = 5).

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