Question

A tap running 20ml a minute. How long to a fill a litre. In minutes please

Answer 1

50 minutes

Step-by-step explanation:
A litre is 1000 ml, so you are just calculating how many 20 ml is in 1000 ml, which is done by dividing 1000 by 20.

Answer 2

20ml in 1 minute. 1000ml is equal to 1 litre.

Step-by-step explanation:

1000/20 = 50

. 50 minutes will take to fill a litre