Question

A alone can complete 50% of a work in 15 days while B takes 10 days more than A to complete it. If B and C together can complete the work in 20 days, then find the time taken by C alone to complete the same work.

Q: Answer-A alone can complete 50% of a work in 15 days while B takes 10 days more than A to complete it. If B...

Time taken by A alone to complete the entire work 150.5 30 days Time taken by B alone to complete the entire work 30 10 40 days Let the total work L.C.M of 30, 40 and 20 120 units Then, efficiency of B 12040 3 unitsday Combined efficiency of B and C 12020 6 unitsday So, efficiency of C alone 6 3 3 unitsday So, time taken by C alone to complete the entire work 1203 40 days