A company undertakes a project to be completed in 40 days with 80 workers. After 10 days, due to a shortage, only 60 workers remain. How many additional workers must be hired after 20 more days to complete the project on time?
A company undertakes a project to be completed in 40 days with 80 workers. After 10 days, due to a shortage, only 60 workers remain. How many additional workers must be hired after 20 more days to complete the project on time?
एक कंपनी 80 श्रमिकों के साथ 40 दिनों में पूरा होने वाला एक प्रोजेक्ट लेती है। 10 दिनों के बाद, कमी के कारण केवल 60 श्रमिक ही बचते हैं। प्रोजेक्ट को समय पर पूरा करने के लिए 20 दिनों के बाद कितने अतिरिक्त श्रमिकों को काम पर रखना होगा?
Detailed Solution & Logic
60
Total work in terms of man-days = 80x40=3200 man-days
Work done in first 10 days = 80x10=800 man-days
Work done in next 20 days with 60 workers 60x20=1200 man-days
Remaining work= 3200 - (800+1200) = 1200 man-days
Time left = 40 - (10+20) = 10 days
Required workers for remaining work = $\frac {1200}{10} =120 $
Additional workers to be hired = 120 - 60 = 60
Ans: 60 additional workers required
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