Question

40 litre of milk contain 10% water find the quantity of water to be added to milk so that it may contain 20% water​

Answer 1

Answer:

40 l of milk contain water=20%

10% of 40 =

10×40 ÷100= 4 l

so :when 10% is 4 l then 20%=

10%+10%=

4 l+ 4 l=8 l

therefore 8 litre of water must be added to 40 l milk so that the milk contain 20%of water