Discover the answers you need at Westonci.ca, where experts provide clear and concise information on various topics. Explore our Q&A platform to find reliable answers from a wide range of experts in different fields. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

5 pumps are required to fill a tank in 90 minutes .how many pumps of the same type are used to fill the tank in 30 minutes

Sagot :

Answer: 15 pumps

More the number of pumps lesser is the time taken to fill the tank

Number of pumps ∝ 1/Time

n = k / t

[where k = constant]

In 1st case

5 = k / (1.5)

k = 7.5

In second case

n = k / t

= 7.5 / 0.5

= 15

∴ 15 pumps are used to fill the empty tank in half an hour.