Question

125 gallons of mixture of milk and water contains 20% water ehat the amount of water needs to be added to this milk water mixture in order to increase the percentage of water to 25% of new mixture

Answer 1

125 gallon mixture
20% water means 25 gallon water and 100gallon milk
now water is 25% so milk is 75%
75% ---100 gallon
1-----100/75
100% ----400/3 = 133.3

amount of water needed is 400/3 -100= 100/3 gallon