21.8 men complete 80% of the total work in 20
days. In how many days can 40 men complete
the entire piece of work?
نرم (م)
(15 days
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अंग्रेजी भीड़ में घुसे साले तू तो 4 किलो आवाज
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1. P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?
A. 7/15 B. 11/15
C. 2/11 D. 8/15
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2. P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?
A. 9(1/5) days B. 9(3/5) days
C. 9(2/5) days D. 10 days
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