John has taken four (4) tests that have an average of 90. 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?	Select
A) 81 B) 90 C) 82 D) 94 E) 97
Traditional Method:   Total scored till now 90*4= 
<gadget id="calculator">90*4</gadget>
<output>360</output>
360   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= 522-360= 
<gadget id="calculator">522-360</gadget>
<output>162</output>
162   81vg on 2 tests= 162/2= 
<gadget id="calculator">162/2</gadget>
<output>81</output>
81   81nswer: 81
<result>A</result>
John has taken four (4) tests that have an average of 90. 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?