Arithmetic Aptitude Time and Work

• A 45
• B 35
• C 25
• D 20
• Share this MCQ

D

Answer: D

If A and B can dig the trench in 12 days, then their combined daily rate of progress is 1/12 of the trench per day.
Similarly, if A can dig the trench in 30 days, then his daily rate of progress is 1/30 of the trench per day.
Therefore, B's daily rate of progress is 1/12 - 1/30, which simplifies to 1/20.
So, it would take B alone 20 days to dig the trench.

Click me to Read more Question & Answer of Time and Work

---

Share this MCQ

‹ Previous Next ›

Learn More MCQ Questions from Arithmetic Aptitude Time and Work

Get tested on your knowledge of time and work with our comprehensive collection of MCQs. Covering key concepts such as efficiency, productivity, and time management, our MCQs are a quick and effective way to test your understanding of these important topics. Whether you're preparing for an exam or just want to improve your problem-solving skills, our MCQs provide a convenient and enjoyable way to practice. Start practicing now and improve your understanding of time and work today!