In a class, the average age of 45 boys is 10 years and the average of 15 girls is 10 years. what is the average age of the whole class?\nOptions:\n(A) 12 Years\n(B) 12.3 Years\n(C) 10 Years\n(D) 13 Years\n(E) 15 Years Hmmm, my stream of consciousness:
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Total age of 60 students\n(45X 10+15 X 10) = 630\nAverage = 600/60 = 10 Years So, the answer is (C).
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