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Q:

P and Q together can do a job in 6 days. Q and R can finish the same job in 60/7 days. P started the work and worked for 3 days. Q and R continued for 6 days to finish the work. Then the difference of days in which R and P can complete the job alone is 

  • 1
    12 days
  • 2
    15 days
  • 3
    10 days
  • 4
    8 days
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Answer : 3. "10 days "

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