Question

6 pipes are required to fill a tank in 1 hour 20 minutes.How long will it take to fill the tank if only 5 pipes of the same type are used?

Answer 1

Answer:

2x

Step-by-step explanation:

Answer 2

If only 5 pipes of the same type are used then it will take 96 mins or 1 hr 36 min to fill the tank.

Step-by-step explanation:

Initial no. of pipes = 6

Time taken by 6 pipes to fill the tank = 1 hr 20 min = 60 + 20 = 80 minutes

Let the time taken by 5 nos. of same types of pipes be “x” minutes.

Based on the inverse proportion, we can write the eq. as,

6 * 80 = 5 * x

⇒ x = [6 * 80] / 5

⇒ x = 480/5

⇒ x = 96 mins or 1hr 36 min

Thus, it will take 96 minutes or 1 hr 36 min to fill the tank by 5 pipes of the same type.

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