There are two inlets A and B connected to a tank. A and B can fill the tank in 32 hours and
28 h, respectively. If both the pipes are opened alternately for 1 h, starting with A, then
in how much time (in hours, to the nearest integer) will the tank be filled?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 30
According to the question
A * 32 = B * 28
A/B = 7/8
Total work = 7 * 32 = 224
If both the pipes are opened alternately for 1 h, starting with A
In 2 hours they completed the 15 works completed
then, 224 work should be completed in 30 hours approx.