Question

a tap can fill up the empty tank in 5 hours whereas it can be emptied by a pipe in 6 hours. how long will take to fill the empty tank if both the tap and pipe are opened together​

Answer 1

Answer:

Pipe A can billion empty tanks in 5hrs

⇒ billed by pipe A in hr = 5/1

Pipe B can fill an empty tank in 6hrs.

= Part filled by pipe B in 1hr= 6/1

tank filled by pipe AandB together in 1 hr = 5/1 −6/1 = 30/1

the tank can be filled in 30hrs

hope this helps you..