A big container is 30% full with water. If 54 liters of water is added, the container becomes 3/4 full. What is the capacity of the big container?	Pick one.
A) 36 liters	B) 40 liters	C) 45 liters	D) 54 liters	E) 120 liters
A big container is 30% full with water and after 54 liters of water is added, the container becomes 75% full. Hence these 54 liters account for 45% of the container, which means that the capacity of it is  54/0.45= 
<gadget id="calculator"> 54/0.45</gadget>
<output>120</output>
120 liters.   OR: if the capacity of the container is x liters then: 0.3x+54=0.75x --&gt; x=120 liters.   Answer: 120 liters
<result>E</result>
A big container is 30% full with water. If 54 liters of water is added, the container becomes 3/4 full. What is the capacity of the big container?