Question

Roshan Lal is a milk man and supplies
milk from door to door in his village Kotli.
Normally his 20 litres of a mixture
contains milk and water in the ratio
3 : 1. He has a habit of mixing water to
milk. So how much milk must he add to
this mixture to get a mixture containing
milk and water in the ratio 4:1?
​

Answer 1

Answer:

16. lits of milk

Step-by-step explanation:

in 20lits of milk he mixes 3parts of milk and 1part water

from this we get

3/4*20=15lits of milk

1/4*20=5lits of water

from the problem we have

4parts of milk and 1 part water

therefore we get

4/5*20=16lits of milk