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Averages
Six persons standing in queue with different age group, after 2 years their average age will be 43 and 7th person joined with them. Hence the current average age has become 45. Find the age of 7th person?
Options
a) 43 b)69 c)52 d)31
Read Solution (Total 1)
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- b) 69
As after 2 years average will be 43, so present average of 6 persons=41
Let the age of 7th person joined= x years, then new average=45
So (41*6 +x) / 7= 45 , x=69 - 8 years agoHelpfull: Yes(7) No(4)
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