Let the total work = LCM of 18 and 15 = 90
Efficiency of P = 90/18 = 5 unit/day
Efficiency of P + Q = 120/15 = 6 unit/day
The work done by P and Q in 10 days = 6×10= 60 unit
Remaining work = 90 – 60 = 30 unit
Remaining work done by P = 30/ 5= 6 days .
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90 Mins English English100 Questions100 Marks90 Mins English English40 Questions30 Marks25 Mins EnglishWorking together A, B and C can complete a certain work in 40 days. B and C together can complete thesame work in 60 days. B is 25% more efficient than A. In how many days will C alone complete 40% ofthe same work?
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