Question : A, B, and C can do a job in 6 days, 12 days and 15 days respectively. After $\frac{1}{8}$th of the work is completed, C leaves the job. The rest of the work is done by A and B together. The time taken to finish the work is:

Question : A can do $\frac{1}{3}$ of a work in 30 days. B can do $\frac{2}{5}$ of the same work in 24 days. They worked together for 20 days. C completed the remaining work in 8 days. Working together A, B and C will complete the same work in:

Question : X can do a piece of work in $p$ days and Y can do the same work in $q$ days. Then the number of days in which X and Y can together do that work is:

Question : A alone can do a work in 14 days. B alone can do the same work in 28 days. C alone can do the same work in 56 days. They started the work together and completed the work such that B was not working in the last 2 days and A did not work in the last 3 days. In how many days

Question : A can do 20% of a task in 4 days and B can do $33 \frac{1}{3}$% of the same task in 10 days. They worked together for 9 days and then, C completed the remaining work in 6 days. B and C together will complete 75% of the same work in: