Question

A machine can pump 15 litres of water in one minute.

How long does it take to pump 900 litres of water

Answer 1

900 liters of water is pumped in 1 hour

Explanation:

Time taken to pump 15 liters of water = 1 minute.

Time taken to pump 1 liters of water = 1/15 minute

`\sf \text{Time taken to pump 900 liters of water=$(1)/(15)*900$}`

= 60 minutes

= 1 hour