Question

6 pipes are required to fill a tank in 1 hour and 20 minutes . If we use 5 such types of pipes . How much time it will take to fill the tank?

Answer 1

This is in inverse proportion so

x1y1=x2y2

6*20=5*y

120=5*y

y=120/5=24

Answer 2

Answer:

24 is the correct answer