Vandana can do a piece of work in 25 days. Vasvi is 25% more efficient then Vandana. The number of days taken by Vasvi to do the same piece of work is:

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

A and B can do a work in 9 days and 12 days respectively. If they work on alternate days starting with A, then in how many days will the work be completed?

A, B and C can do some work in 40 days. A and C together can do twice as much work as B alone. Find the time taken by B to do the whole work.

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:

Rajan does $\frac{7}{11}$ of a work in 21 days. How many more days will he take to complete the work?

A is twice as good as a workman B and together they finish a piece of work in 18 days. In how many days will A alone finish the work?