Question

12 pipes are required to fill a tank in 1 hour 20 minutes. if we use 4 such types of pipes, how much time it will take to fill the tank

Answer 1

Answer:

Step-by-step explanation:

12 pipe= 80 minutes

1 pipe = 80/12

If we use 4 pipes= 80/12 *4= 266 minutes

Answer 2

Answer:

12 pipes fill the tank in 80 mts

1 pipe will fill the tank in 80×12 mts

4 pipes will fill the tank in 80×12/4=240 mts=4 hrs

This is a case of inverse proportion