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Question 110
The average age of a jury of 5 is 40. If a member aged 35 resigns and man aged 25 becomes a member, then the average age of the new jury is
Solution
Initially, sum of ages of the jury = 200,
then man aged 35 resigns, sum of ages = 200-35
then man aged 25 joins, sum of ages = 200-35+25
Final number of members in the jury =5
So, average age of the jury = (200-35+25)/5 = 38
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