Question

A 30% solution of barium chloride is mixed with 10 grams of water to form a 20%

solution. How many grams of the original solution did we start with ? ​

Answer 1

Answer:

20

Step-by-step explanation:

Let x represent grams of solution started with

Note: Using %Water = %Water

.70x + 10 = .80(x+10)

(10-8)/.1 = x = 20, the grams of solution started with