Answer:
Kira use 1200 ml of solution B.
Step-by-step explanation:
Given:
Two solution with percentage of alcohol.
Percentage of alcohol in solution A = =
Percentage of alcohol in solution B = =
Quantity of pure alcohol, in (A+B) mix = ml
According to the question:
Kira uses milliliters less of Solution A that Solution B.
So,
⇒ <em> ...equation (i)</em>
In terms of total quantity and percentage we can re-write it as,
⇒ <em>...equation (ii)</em>
Substituting the value of A from equation (i) in equation (ii).
⇒
⇒
⇒
⇒
⇒ <em>...adding 20 both sides</em>
⇒
⇒ <em> ...dividing 0.3 on both sides </em>
⇒ ml
She uses 1200 milliliters of solution B where the resulting mixture has 340 ml of pure solutions.