administrators Reply Quote

Answer : 1 120 Explanation : Answer: A) 120 Explanation: 1/15 1/12 1/R = 1/6, we got R = 60 (it means R will take 60 days to complete the work alone)so ratio of work done by P:Q:R = 1/15 : 1/12 : 1/60 = 5 : 4 : 1so R share = (1/10) x 1200 = 120.

Click here to see the full blog post