Jerry’s average (arithmetic mean) score on the first 3 of 4 tests is 81. If Jerry wants to raise his average by 2 points, what score must he earn on the fourth test?	Options:
A) 87	B) 89	C) 90	D) 93	E) 95
Total score on 3 tests = 81*3= 
<gadget id="calculator">81*3</gadget>
<output>243</output>
243   Jerry wants the average to be= 83   Hence total score on 4 tests should be = 83*4= 
<gadget id="calculator">83*4</gadget>
<output>332</output>
332   Score required on the fourth test= 332 - 243= 
<gadget id="calculator">332 - 243</gadget>
<output>89</output>
89   Option 89
<result>B</result>
Jerry’s average (arithmetic mean) score on the first 3 of 4 tests is 81. If Jerry wants to raise his average by 2 points, what score must he earn on the fourth test?