Question

A pipe can fill a tank in 10hr, while it can empty it in 6hr. find the time taken to emply the tank, when both the pipes
Opened up simultancongly
1) 11h 2) 15h 3) 18h 4) 16h 5) none of these​

Answer 1

Answer:

d

Step-by-step explanation:

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Answer 2

Answer:

1 11h 2) this is answer

Step-by-step explanation:

1 11h 2)