Login / Signup

Question

‘A’ alone can complete a work in 15 days while ‘A’ and ‘B’ together can complete the same work in 10 days. How much percentage of the work, ‘B’ alone can complete in 21 days?

A 75%

B 77%

C 70%

D 79%

E 80%

Practice Next

More Time and work Questions

‘X’ and ‘Y’ together can finish an assignment in 30 days while ‘Y’ and ‘Z’ together can finish the same assignment in 45 days. ‘X’ and ‘Y’ together worked ...
A can copy 70 pages in 20 hours, A and B together can copy 120 pages in 12 hours. Then in how many pages can B copy 10 hours.
'A' and 'B' alone can complete a work in 14 days and 21 days, respectively. Find the time taken by them to complete the work if they work on alternate days...
A, B and C are hired at Rs 1050 to do a piece of work. A and B together complete 19/23 part of the work. And B and C together complete 8/23 of the work. Th...
The efficiency of P is 80% of the efficiency of Q. If Q can type 150 pages in 30 days, then find the number of days taken by P alone to type 300 pages.
12 men working for 6 hours a day can complete a work in 20 days. If 30 women are employed to work, then find how many hours a day they have to work to comp...
Individually, X, Y and Z can finish a job in 15 days, 20 days, and 24 days respectively. How many days will they take to complete the job working together?
It takes a team of either 20 boys or 35 girls, 27 days to achieve a sales target. How many days will it take for a team consisting of 21 boys and 42 girls ...
A and B finish a job together in 36 days, while B and C together finish it in 48 days. The trio completes 75% of the job in 18 days. In how many days will ...
Person A can complete a certain task in 20 days, while person B can finish the same task in x days. Together, they can complete the task in 12 days. Determ...

Relevant for Exams:

Hey! Ask a query

ask-question