A big container is 30% full with water. If 27 liters of water is added, the container becomes 3/4 full. What is the capacity of the big container? Options
A) 36 liters	B) 40 liters	C) 45 liters	D) 54 liters	E) 60 liters
A big container is 30% full with water and after 27 liters of water is added, the container becomes 75% full. Hence these 27 liters account for 45% of the container, which means that the capacity of it is  27/0.45= 
<gadget id="calculator"> 27/0.45</gadget>
<output>60</output>
60 liters.   OR: if the capacity of the container is x liters then: 0.3x+27=0.75x --&gt; x=60 liters.   Answer: 60 liters.
<result>E</result>
A big container is 30% full with water. If 27 liters of water is added, the container becomes 3/4 full. What is the capacity of the big container?