Question

Teo pipes A and B Full a tank in30 min and 60 min respectivley. initially both the pipes are opend but after 10 min, pipe A was closed. what is the total time Full tank​

Answer 1

Answer:

100 min

Step-by-step explanation:

6 pipes fill the tank in = 120 min

1 pipe will fill the tank in = 120/6

                                       = 20 min

and 5 pipe will fill the tank in = 20×5

                                               = 100 min

Step-by-step explanation: