If cost of 15 eggs be 90 rupees, then find out the cost of 5 dozen eggs.  Choose the correct option:	A) 300	B) 400	C) 500	D) 600	E) 360
Cost of 15 eggs = 90 rupees   Cost of 1 egg = 90/15= 
<gadget id="calculator">90/15</gadget>
<output>6</output>
6 rupees,   Cost of 5 dozens, i.e. 6 x 12= 72 x 5 = 360   Answer : 360
<result>E</result>
If cost of 15 eggs be 90 rupees, then find out the cost of 5 dozen eggs.