A completes a work in 7 days. B completes the same work in 9 days. What will be the time taken in completing the same work if both A & B work together?

P completed $\frac{2}{5}$ part of certain work in 12 days. Further, Q completed the rest of the work in 18 days. In how many days could P and Q complete the work, if they worked together?

Arrange the following cases in ascending order in terms of number of days to complete the same work.

(A) P can do (1/3)rd of the work in 5 days.

(B) Q can do (1/6)th of the work in 4 days.

(C) R can do 25% of the work in 4 days.

(D) S can do 35% of the work in 7 days.

Choose the correct answer from the options given below:

To complete a work, Aditi takes 60 % more time than Bimla. If both of them work together, they take 16 days to complete the work. How much time shall Bimla take to do it alone?

Nine boys can complete a work in 360 days, 18 men can complete the same work in 72 days and 12 women can complete it in 162 days. In how many days, can 4 men, 12 women and 10 boys together, complete the work ?

6 goats or 8 sheeps can graze a field in 50 days. 8 goats and 6 sheeps can graze the field in:

X, Y and Z complete a work in 6 days. X or Y alone can do the same work in 16 days. In how many days can Z alone finish the same work?