Question

2. Two taps can fill a tank in 12 h and 15 h, respectively,
if each is opened separately. An outlet pipe can empty
the full tank in 10 hours. If all three taps are opened
simultaneously, find (i) how much of the tank will fill
in one hour and (ii) in how many hours, the tank will
get filled?​

Answer 1

Answer:

1/12 +1/15 - 1/10

5/6 o+4/60 -6/60=3/60=1/20

1)20hrs full. I

1 hr...... x

1/20 Parts will be filled

2) 20hrs will be taken to fill the tank