search
Q: Two pipes A and B can fill a tank in 45 hrs and 36 hrs respectively. If both the pipes are opened together, then how long will it take to fill the tank ?
  • A. 10 Hours
  • B. 20 Hours
  • C. 2 Hours
  • D. 5 Hours
Correct Answer: Option B -
answer image

Explanations:

explanation image