Members of the Computer Club were assessed equal amounts to raise $1200 to buy some software. When 8 new members joined, the per-member assessment was reduced by $7.50. What was the new size of the club?

Answer 1

number of original members ---x
share per member = 1200/x

number of members now --- x+8
share per member = 1200/(x+8)

solve 1200/(x+8) = 7.5

Answer 2

10