In a dye-making process, a young lady mixes 3/5th of 20 liters of water with 5/6th of 18 liters of vinegar. How many liters of the mixture are obtained?
3/5th of 20 liters of water is 20*(3/5) = 
<gadget id="calculator">20*(3/5)</gadget>
<output>12</output>
12 liters
5/6th of 18 liters of vinegar is 18*(5/6) = 
<gadget id="calculator">18*(5/6)</gadget>
<output>15</output>
15 liters
12 liters of water mixed with 15 liters of vinegar gives 12+15 = 
<gadget id="calculator">12+15</gadget>
<output>27</output>
27-liter mixture.

<result>27</result>