Calculate Tony''s average score in an exam if he obtained the following marks 53, 87, 89, 80 and 78 out of 100 in different subjects.	Pick one
A) 73.4	B) 74.4	C) 75.4	D) 76.4	E) 77.4
77.4xplanation:     (53+87+89+80+78)/5= 
<gadget id="calculator">  (53+87+89+80+78)/5</gadget>
<output>387/5 = around 77.4</output>
77.4   Answer: Option 77.4
<result>E</result>
Calculate Tony''s average score in an exam if he obtained the following marks 53, 87, 89, 80 and 78 out of 100 in different subjects.