Pipe A can fill a tank in X hours. Pipe B can empty it in 15 hours. If both the pipes are opened together, then the tank will be filled in 7 hours and 30 minutes find X.

Access ‘RRB ALP Electronics Mechanic’ Mock Tests with

• 60000+ Mocks and Previous Year Papers
• Unlimited Re-Attempts
• Personalised Report Card
• 500% Refund on Final Selection
• Largest Community

353k+ students have already unlocked exclusive benefits with Test Prime!