Question
Download Solution PDFA can finish a work in 20 days and B can complete the same work in 15 days. B worked for 9 days and left the job. In how many days can A alone finish the remaining work?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
A can finish a work = 20 days
B can complete the same work = 15 days
Formula used:
Total work = efficiency × time
Calculation:
| Efficiency | Person | Time | Total work |
| 3 | A | 20 | 60 |
| 4 | B | 15 |
According to the question:
⇒ B × 9 + A × D = 60
⇒ 4 × 9 + 3 × D = 60
⇒ 3D = (60 - 36) = 24
⇒ D = 24/3 = 8 days
∴ The correct answer is 8 days.
Last updated on Jun 13, 2025
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