SOLUTION: The average Height of 8 boys in a school is 40cms. If a new boy with the height of 67cms is joined the group, then what is the new average height in cms?
A) 40
B) 41
C) 43
D) 1
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A) 40
B) 41
C) 43
D) 1
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Question 757009: The average Height of 8 boys in a school is 40cms. If a new boy with the height of 67cms is joined the group, then what is the new average height in cms?
A) 40
B) 41
C) 43
D) 107 Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website!
The average of all 9 is the sum of all 9 heights divided by 9. The sum of the first 8 is 8 times 40.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
