**Madhu takes twice as much time as Uma to complete a work and Ramesh does it in the same time as Madhu and Uma together would. If all three are working together, they can finish the work in 6 days. Then the time taken by Madhu to finish the work is ___?**

A] 12 days

B] 14 days

C] 36 days

D] 40 days

**A can do a piece of work in 40 days. He starts working, but having some other engagements he drops out after 5 days. Thereafter, B completes this work in 21 days. How many days would A and B take to complete this work working together?**

A] 16 days

B] 15 days

C] 17 days

D] 11 days

**A alone would take 8 more days to complete the job than if both A and B worked together. If B worked alone, he took four and half more days to complete the job than if A and B worked together. How many days would they take if both A and B worked together?**

A] 8 days

B] 5 days

C] 2 days

D] 6 days

**Ashokan is thrice as good a workman as Nitin and is therefore able to finish a piece of work in 40 days less than Nitin. Find the time in which they can do it working together.**

A] 15 days

B] 7 days

C] 16 days

D] 13 days

Manoj and Ajita can do a job alone in 10 days and 12 days respectively. Manoj starts the work and after 6 days Ajita also joins to finish the work together. For how many days did Ajita actually worked on the job?

A] 2^{3}/_{11}

B] 2^{1}/_{11}

C] 2^{2}/_{11}

D] 3^{1}/_{12}