Direct Formula / Rule 16 :
L litres of a mixture contains two liquids A and
B in the ratio a : b. The amount of liquid B, that is added to
get a new mixture containing liquid A and B in the ratio x : y, is given by
729 litres of a mixture contains milk and water in the
ratio 7 : 2. How much water is to be added to get a new
mixture containing milk and water in the ratio 7 : 3 ?
Detail Method :
Let the amount of water be x litres.
Ailigation Method :
Method I. Percentage
Change the ratio into percentage.
% of water in the original mixture
Quicker Method : Here you can use direct formula :