Nancy obtained 66, 75, 52, 68 and 89 marks (out of 100) in American Literature, History, Home Economics, Physical Education and Art. Calculate her average marks ?	Choose the most appropriate option:
A) 50  B) 80  C) 70  D) 60  E) 71
Explanation:   Average = (66 + 75 + 52 + 68 + 89 )/ 5= 
<gadget id="calculator">(66 + 75 + 52 + 68 + 89 )/ 5</gadget>
<output>70</output>
70.   Answer: 70) 70
<result>C</result>
Nancy obtained 66, 75, 52, 68 and 89 marks (out of 100) in American Literature, History, Home Economics, Physical Education and Art. Calculate her average marks ?