Answer:
24.5 liters of water.
Step-by-step explanation:
14 liters of 25% acid solution contains [tex]\frac{14 \times 25}{100} = 3.5[/tex] liters of acid and (14 - 3.5) = 10.5 liters of water.
Let us assume that x liters of water are mixed to make it a 10% acid solution.
So, [tex]\frac{3.5}{10.5 + x} = \frac{10}{100} = 0.1[/tex]
⇒ 3.5 = 1.05 + 0.1x
⇒ 0.1x = 2.45
⇒ x = 24.5 liters. (Answer)
