the ratio of milk and water in 60 l mixture is 4:1. what quantity of mixture is replaced by water then the ratio of milk and water in remaining mixture becomes 3:1
Quantity of milk : 4/5*60= 48
Quantity of water:1/5*60= 12
Let 'x' be the letter of water to be added to the mixture. = (12+x)
48/(12+x) =3/1
3(12+x) = 48
36+3x. = 48
3x= 48-36
x =12/3
x= 4
4 litres of water is added to the mixture