Scott's average (arithmetic mean) golf score on his first four rounds was 68.What score does he need on his fifth round to drop his average score by 2 points? Choose the correct choice from the following answers:
A) 58
B) 72
C) 78
D) 88
E) 312
58verage score for first 4 rounds = 68   58verage score after 5 rounds = 66   Score Scott needs on his 5th round to drop average score by 2 points = 68 - (2*5)= 
<gadget id="calculator">68 - (2*5)</gadget>
<output>58</output>
58   58nswer 58
<result>A</result>
Scott's average (arithmetic mean) golf score on his first four rounds was 68.What score does he need on his fifth round to drop his average score by 2 points?