<PRE><B>Question 306689</B>
The average age of five boys is 15 years. 
The sum of their ages is 5*15 = 75 yrs.
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A sixth boys joins them, making the average age 15 years and 6 months. 
The sum of their ages is now 6*15.5 = 93
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What is the age of this sixth boy ?
He is 93-75 = 18
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Cheers,
Stan H.
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A 15 B 16 C 18 D 17 E 14 
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