If 10 litres of an oil of Rs.55 per litres be mixed with 5 litres of another oil of Rs.66 per litre then what is the rate of mixed oil per litre? Choose the correct choice.
A) Rs.49.17	B) Rs.51.03	C) Rs.58.66	D) Rs.55.33	E) None of the above
55*10= 
<gadget id="calculator">55*10</gadget>
<output>550</output>
550   66*5= 
<gadget id="calculator">66*5</gadget>
<output>330</output>
330   880/15= 58.66   ANSWER:Rs.58.66
<result>C</result>
If 10 litres of an oil of Rs.55 per litres be mixed with 5 litres of another oil of Rs.66 per litre then what is the rate of mixed oil per litre?