search
Q: A and B can finish a piece of job in 24 hours. B and C can finish the same in 40 hours and C and A can complete in 30 hours. If they all work together then in how many hours they can finish?/
  • A. 40
  • B. 30
  • C. 50
  • D. 20
Correct Answer: Option B -
answer image

Explanations:

explanation image