search
Q: Pipe A can fill a tank in 12 hours. Pipe B can empty it in X hours. If both the pipes are opened simultaneously, the tank will be filled in 30 hours. Find the value of X:
  • A. 24
  • B. 20
  • C. 15
  • D. 25
Correct Answer: Option B -
answer image

Explanations:

explanation image