Question

a tank can be filled by one tap in 8hours and by another in 4 hours to fill the tank if both the taps are opened together​

Answer 1

Answer:In 1 hr tank will be filled = 1/5

In 1 hr tank will be emptied = 1/8

If both taps opened then

Tank will be filled in 1 hr = 1/5 -1/8

= 3/40

So tank will be filled in 40/3 hrs.

And 40/3 hrs or 13 hrs.20min.

Step-by-step explanation: