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OpenStudy (anonymous):
The average of board of 7 trustees is the same as it was 5 years ago, a younger trustee having been substituted for one of them. How much younger was he than the trustee whose place he took . 31, 31, 35, 37
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OpenStudy (anonymous):
35
OpenStudy (anonymous):
explain dude
OpenStudy (anonymous):
I will explain tomorrow, i am running out of time. but i hope anyone else will explain it.. bye
OpenStudy (anonymous):
hehhe ok bye i got the answer thnks a lot man
OpenStudy (anonymous):
What does the average of board of 7 trustees mean ?
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OpenStudy (anonymous):
means average age of 7 trustees(people) is the same as it was 5 year ago
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