1.

The average age of a class of 6 girls is x years. Four new girls having ages x – 2, x + 2, x + 4 and x + 6 joins the class. What is the new average age (in years) of the class?

A. x + 1
B. x + 2
C. 2.5x
D. x + 2.5
Answer» B. x + 2


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