The average age of a family of 6 members is 26 years.If the age of the youngest member is 10 years,what was the average age of the family at the birth of the youngest member?\nOptions:\n(A) 15\n(B) 18\n(C) 16\n(D) 12\n(E) 19 Stream of consciousness first, then make a decision:
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Present age of total members = 6 X 26 = 156\n10 yrs back their ages were = 6 x 10 = 60\nAges at the birth of youngest member = 156 - 60 = 96\nTherefore, avg age at the birth of youngest member = 96/6 = 16.
Thus, the answer is (C).
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