InterviewSolution
Saved Bookmarks
| 1. |
A and B together do a job in 15 days and A alone could do the same job in 20 days. How many days would B take to do half the job if he worked alone?1). 602). 303). 454). 40 |
|
Answer» Work done by A in 1 day can be given as 1/20th of the total work Let the work done by B in 1 day be y of the total work From the PROBLEM statement ⇒ 15 × (1/20 + y) = 1 ⇒ y = 1/15 - 1/20 = 1/60 Time required by B to complete the work is 60 DAYS Time required to complete the half work is ½ × 60 = 30 days ∴ The time required to complete half of the work is 30 days |
|