Jerry’s average (arithmetic mean) score on the first 3 of 4 tests is 85. If Jerry wants to raise his average by 2 points, what score must he earn on the fourth test?	Choose the correct option
A) 87 B) 89 C) 90 D) 93 E) 95
Total score on 3 tests = 85*3= 
<gadget id="calculator">85*3</gadget>
<output>255</output>
255   Jerry wants the average to be= 87   Hence total score on 4 tests should be = 87*4= 
<gadget id="calculator">87*4</gadget>
<output>348</output>
348   Score required on the fourth test= 348 - 255= 
<gadget id="calculator">348 - 255</gadget>
<output>93</output>
93   Option 93
<result>D</result>
Jerry’s average (arithmetic mean) score on the first 3 of 4 tests is 85. If Jerry wants to raise his average by 2 points, what score must he earn on the fourth test?