Question

A water tank has three taps a, b and

c. Tap a, when opened, can fill the water tank alone in 4 hours. Tap b, when opened, can fill the water tank alone in 6 hours and tap c, when opened, can empty the water tank alone in 3 hours. If taps a, b and c are opened simultaneously how long will it take to fill the tank completely

Answer 1

Answer:

half hour it will fill water