Question

35
Pipe A can fill a tank in 12 hours and pipe B can empty the tank in 18 hours. Both piper
are opened at 6 AM and after some time, pipe is closed and tank is all at PM At
what time the pipe B closed?
a) 10 AM
b) 8 AM
c) 9 AM
d) 11 AM
with explanation​

Answer 1

Answer:

Pipe A can fill a tank in 12 hours and pipe B can empty the tank in 18 hours. Both piper

are opened at 6 AM and after some time, pipe is closed and tank is all at PM At

what time the pipe B closed?

a) 10

answer is = 9am