Johnny has 4 classes. He averaged a mark of 83 in those classes. If Johnny takes night school and scores an 88 in the course, what will his new average be? Choose the correct choice from the following answers.
A) 83	B) 84	C) 85	D) 85.5	E) 86
(sum of the 4 marks)/4 = 83   sum of the 4 marks = 332   new sum = 332 + 88= 
<gadget id="calculator">332 + 88</gadget>
<output>420</output>
420   new average= 420/5= 
<gadget id="calculator">420/5</gadget>
<output>84</output>
84   ans: 84
<result>B</result>
Johnny has 4 classes. He averaged a mark of 83 in those classes. If Johnny takes night school and scores an 88 in the course, what will his new average be?