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The average age of 30 boys in a class is 16 years The average of the ages of the boys and the teacher is 17 years The age of teacher is?
Wiki User
∙ 12y ago
avg of 30 is 16=30*16=480
avg of 30 and 1 teacher is 17=31*17=527
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then age of teacher is 527-480=47...
Wiki User
∙ 12y ago
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