Priya can do a certain piece of work in 30 days. Priya and Varsha can together do the same work in 18 days, and Priya, Varsha, and Nisha can do the same work together in 9 days. In how many days can Priya and Nisha do the same work?
45/4
Let the rates of Priya, Varsha, and Nisha be p, v, and n, respectively. We know that Priya can complete the work in 30 days, so her rate is 1/30. Priya and Varsha together can complete it in 18 days, so their combined rate is 1/18. Similarly, Priya, Varsha, and Nisha together can complete it in 9 days. From this, we can set up equations and solve to find the time taken by Priya and Nisha together.
Important Questions from Time and Work
A and B can do a piece of work in 18 days. B and C together can do it in 30 days. If A is twice as good a workman as C, find in how many days B alone can do the work?
Two men and 7 women can complete a work in 28 days, whereas 6 men and 16 women can do the same work in 11 days. In how many days will 5 men and 4 women, working together, complete the same work?
A man and a woman, working together can do a work in 66 days. The ratio of their working efficiencies is 3 ∶ 2. In how many days 6 men and 2 women together can do the same work?
Each one of five men independently can complete a work in 20 days. The work is started by one person. Next day one more person joins and every next day one more person joins. From the fifth day, five persons continued working as a team. In how many days, will the work be completed?
Numan does half the work as Gagan in 4/5 of the time. If together they take 16 days to complete a piece of work, then how long will it take Gagan to complete the work?
