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Question 1:

The ratio of Rate of filling of two Pipes $A$ and $B$ is $5: 6$. If together they can fill 80% of Tank in 24 minutes. Then in how many minutes does B alone can fill the Tank?

Question 2:

Aakash and Vikash together can complete a piece of work in 20 days and Vikash alone can complete half of the work in 24 days. In how many days can Aakash alone complete the $\frac{7}{8}$ part of the same work?

Question 3:

A completed a work in 24 days and B completed the same work in 30 days. They started together and worked for 12 days and after 12 days $\mathrm{A}$ left the work and $\mathrm{B}$ complete remaining work alone. Then find the number of days to complete the remaining work.

Question 4:

A can do $30 \%$ of a work in 9 days, where as B can do $40 \%$ of the same work in 16 days. Both worked together for $7 \frac{2}{7}$ days and the remaining work is completed by $\mathrm{C}$ in 23 days. A, B and C together can do the work in how many days?

Question 5:

Shivani can do a certain work in 15 days. Sunil is $25 \%$ more efficient than Shivani. Both worked together for 4 days. Anshu alone completed the remaining work in 8 days. Shivani, Sunil and Anshu together will complete the same work in?

Question 6:

D can do a work in 18 days and E can do the same work in half of that time. How many days will they take to finish the work, doing it together?

Question 7:

A, B, and C can do a piece of work in 12, 15 and 20 days respectively, they start working together but $\mathrm{C}$ leave after working for 3 days and $\mathrm{B}, 4$ days before the completion of the work. In how many days the work was finished.

Question 8:

A takes 50% more time than B to complete a task. If both work together, they take 18 days to complete the task. Accordingly, if B works alone then in how many days will he complete the work?

Question 9:

Anuj and Ashu can complete a piece of work in 15 days. Ashu and Ankit can complete the same work in 20 days while Ankit and Anuj can complete the same work in 24 days. In how many days Ankit can finish half of the work.

Question 10:

A and B can build a wall in 9 days and 12 days respectively, While C can destroy the whole wall in 15 days. What is the number of days required to build 86 such walls if A is joined by B and then C on alternate days?