Question
Download Solution PDFAmar can complete a work in 15 days, and Prem, in 12 days. Starting with Amar, they work on alternate days. In how many days will the work be completed?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Amar can complete a work = 15 days
Prem can complete a work = 12 days
Formula used:
Total work = efficiency × time
Calculation:
| Efficiency | Person | Time | Total work |
| 4 | Amar | 15 | 60 |
| 5 | Prem | 12 |
Now,
(Amar + Prem) = 4 + 5 = 9 units = 2 days
⇒ (9 × 6) = 54 units = (2 × 6) = 12 days
⇒ 58 units = 13 days
⇒ 60 units = 13 + (2/5) = 13\(2\over5\) days
∴ The correct answer is 13\(2\over5\) days.
Last updated on Jul 8, 2025
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