Question

taps a and b can fill an empty tank in 3 hours and 5 hours, respectively. tap can empty the full tank in 15/2 hours hours. if all three taps are open at same time, in how many hours will the tank be full?

Answer 1

5 tanks i think so
not sure about the answer

Answer 2

Answer:

2 1/2 hours or 5/2 hours

Step-by-step explanation:

1/x=15/2

1*2=15*x

2/15

1/3+1/5-2/15

Lcm=15

5+3-2/15

6/15

2/5

work done in one day=1/x=2/5

=5/2