Problema Solution
In a group of 8 boys and 6 girls the average number of friends on facebook is 200. if the average number of friends for boys is 140, what is the average number of friends for the girls?
Answer provided by our tutors
Let 'x' represent the average number of friends for girls.
(8*140 + 6x)/14 = 200
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click here to see the equation solved for x
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x = 280 friends
The average number of facebook friends for the girls is 280.