Question

5 pipes are required to fill a petrol tank in 2 hour 20 minutes. How long will it take for 4 pipes to fill the petrol tank

Answer 1

Answer:

Hope it helps you......(✿◕‿◕✿)

Step-by-step explanation:

5 pipes ------------> 140

4 pipes ------------> x

Now, cross-multiply

5x = 140 x 4

5x = 560

x = 560 / 5

x = 112       ✔✔✔

∴ It will take 112 minutes for 4 pipes to fill the petrol tank.

Please mark as brainliest if it really helps you....❤❤❤

Answer 2

Answer: 96 minutes or 1 hour 36 minutes.

Step-by-step explanation:

Let the desired time to fill the tank be x minutes.

In 80 mins a tank is filled by  6 pipes

Lesser the number of pipes more will be the time required by it to fill the tank.

So, this is a case of inverse proportion.

Hence, 80×6=x×5

⇒

5

80×6

​

=x

⇒x=96

Thus, the time is taken to fill the tank by 5 pipes is 96 minutes or 1 hour 36 minutes.