Question

How much water should we add
to 20 gallons of 15 percent Solution to
dilute it to a Concentration of 12%​

Answer 1

Step-by-step explanation:

15 percent solution means 100 ml of solution contains 15 g of solute. that is 30 litre of solution contains 15*30/100 kg of solute which is equal to 4.5 kg of solute. now if we add water then amount of solute is not going to change. now let the amount of water to be added be x litres.