A big container is 40% full with water. If 28 liters of water is added, the container becomes 3/4 full. What is the capacity of the big container in liters?
Choices
A) 68 B) 72 C) 76 D) 80 E) 84
28 liters is 35% of the capacity C.   28 = 0.35C   C = 28/0.35= 
<gadget id="calculator">28/0.35</gadget>
<output>80</output>
80 liters.   The answer is 80.
<result>D</result>
A big container is 40% full with water. If 28 liters of water is added, the container becomes 3/4 full. What is the capacity of the big container in liters?