Question

A is four times efficient as



b.B started the work and after 6 days a joined him.If the whole work wad completed in 12 days in how many days can a alone finish the whole piece of work?

Answer 1

Answer:

A can finish the work in 9 days because,B worked totally 12 days ,12 days work done by only B,A can complete the same work in 12/4 days i.e 3. A has done 6 days work according to the question,so finally 6+3=9 is the answer