what quantity of water should be added to reduce 9 liters of 50 % acidic liquid to 30 % acidic liquid? Choose the correct choice from the following choices:
A) 6 liters  B) 8 liters  C) 10 liters  D) 12 liters  E) 15 liters
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">9 * (1/2)</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">(9/2) * 100</gadget>
<output>450</output>

<gadget id="calculator">450 / 30</gadget>
<output>15</output>

<gadget id="calculator">15 - 9</gadget>
<output>6</output>

<result>A</result>
what quantity of water should be added to reduce 9 liters of 50 % acidic liquid to 30 % acidic liquid?
subtract(divide(multiply(multiply(9, divide(50, const_100)), const_100), 30), 9)
acid in 9 liters = 50 % of 9 = 4.5 liters suppose x liters of water be added . then 4.5 liters of acid in 9 + x liters of diluted solution 30 % of 9 + x = 4.5 27 + 3 x = 45 x = 6 liters answer is a