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# Family Average

SATMAT-ELUI4F

A family consists of two twin baby boys, a girl, and the three children's mother and father.

If each of the two boys weighs $w$ pounds, the girl weighs $w+15$ pounds, and the sum of the mother's and father's weights is $17w$ pounds, then what is the average (mean) weight of each family member?

(Calculator)

A

$4w+3$

B

$9.5w+5$

C

$9w+2.5$

D

$w+5$