ExamVeda
Login
Home

To do a certain work the ratio of the efficiencies of...

This question belongs to Arithmetic Ability Time And Work
Time and Work
?

To do a certain work, the ratio of the efficiencies of X and Y is 5 : 4. Working together, they can complete the same work in 10 days. Y alone starts the work and leaves after 5 days. The remaining work will be completed by X alone in:

Answer & Solution
Correct Answer: Option A
\[\begin{array}{*{20}{c}} {}&{\text{X}}&{}&{\text{Y}} \\ {{\text{Efficiency}}}&5&:&4 \end{array}\]
Total work = (5 + 4) × 10 = 90
Y × 5 + X × a = 90
4 × 5 + 5 × a = 90
20 + 5a = 90
5a = 70
a = 14
Examveda
Question posted by Examveda
Community

Join the Discussion

No comments yet Be the first to discuss this question.
Keep Learning

Related Questions on Time and Work

If A and B together can complete a piece of work in 15 days and B alone in 20 days, in how many days can A alone complete the work?
A. 60 B. 45 C. 40 D. 30
If A and B together can complete a work in 18 days, A and C together in 12 days, and B and C together in 9 days, then B alone can do the work in:
A. 18 days B. 24 days C. 30 days D. 40 days
A and B together can complete a work in 3 days. They start together but after 2 days, B left the work. If the work is completed after two more days, B alone could do the work in
A. 5 days B. 6 days C. 9 days D. 10 days
A can complete a piece of work in 18 days, B in 20 days and C in 30 days, B and C together start the work and forced to leave after 2 days. The time taken by A alone to complete the remaining work is:
A. 10 days B. 12 days C. 15 days D. 16 days
More Related Questions on Time and Work