Question
Download Solution PDFPratima and Diksha can complete a typing work separately in 10 hours and 15 hours, respectively. After typing for 4 hours alone, Pratima leaves the work. In how many hours will Diksha complete the remaining typing work?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Pratima can do a typing work alone = 10 hours
Diksha can do a typing work alone = 15 hours
Formula used:
Total work = efficiency × time
Calculation:
| Efficiency | Person | Time | Total work |
| 3 | Pratima | 10 | 30 |
| 2 | Diksha | 15 |
According to the question:
⇒ Pratima × 4 + Diksha × H = 30
⇒ 3 × 4 + 2 × H = 30
⇒ 2 × H = 30 - 12
⇒ H = 18/2 = 9 hours
∴ The correct answer is 9 hours.
Last updated on Jul 22, 2025
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