If cost of 15 eggs be 75 rupees, then find out the cost of 4 dozen eggs.  Choose the correct choice from the following choices:
A) 300 B) 240 C) 500 D) 600 E) 700
Cost of 15 eggs = 75 rupees   Cost of 1 egg = 75/15= 
<gadget id="calculator">75/15</gadget>
<output>5</output>
5 rupees,   Cost of 4 dozens, i.e. 5 x 12= 60 x 4 = 240   Answer : 240
<result>B</result>
If cost of 15 eggs be 75 rupees, then find out the cost of 4 dozen eggs.