John has taken four (4) tests that have an average of 81. In order to bring his course grade up to a ‘B’, he will need to have a final average of 87. What will he need to average on his final two tests to achieve this grade?
Choose the correct answer:
A) 87
B) 90
C) 92
D) 94
E) 99
87-81= 
<gadget id="calculator">87-81</gadget>
<output>6</output>
6*4= 
<gadget id="calculator">6*4</gadget>
<output>24</output>
24 points    2*87= 
<gadget id="calculator"> 2*87</gadget>
<output>174</output>
174   174+24= 
<gadget id="calculator">174+24</gadget>
<output>198</output>
198 points to be scored in the 2 tests.   Avg of 2 tests= 198/2= 
<gadget id="calculator">198/2</gadget>
<output>99</output>
99   Answer: 99   Traditional Method:   Total scored till now   81*4= 
<gadget id="calculator">  81*4</gadget>
<output>324</output>
324   Total score to avg 87 in 6 tests= 87*6= 
<gadget id="calculator">87*6</gadget>
<output>522</output>
522   Total to be scored on 2 tests= 522-324= 
<gadget id="calculator">522-324</gadget>
<output>198</output>
198   Avg on 2 tests= 198/2= 
<gadget id="calculator">198/2</gadget>
<output>99</output>
99   Answer 99
<result>E</result>
John has taken four (4) tests that have an average of 81. In order to bring his course grade up to a ‘B’, he will need to have a final average of 87. What will he need to average on his final two tests to achieve this grade?