A certain football team played seven games and scored an average of 5 goals per game. If, in the team’s first five games, it scored 5, 4, 2, 5, and 4 goals, what was the average (arithmetic mean) number of goals scored over the last two games?  Options.
A) 5	B) 1	C) 2	D) 7.5	E) Cannot be determined from the information given.
Avg goals for total of 7 games = 5   So A+B+C+7.5+E+F+G/7=5   and A+B+C+7.5+E+F+G = 35   Given A+B+C+7.5+E = 20   So F+G = 15   So average (arithmetic mean) number of goals scored over the last two games is 15/2= 
<gadget id="calculator">15/2</gadget>
<output>15/2 = around 7.5</output>
7.5   Correct answer is 7.5) 7.5
<result>D</result>
A certain football team played seven games and scored an average of 5 goals per game. If, in the team’s first five games, it scored 5, 4, 2, 5, and 4 goals, what was the average (arithmetic mean) number of goals scored over the last two games?