Question 914548

N number of Original Contributors
{{{3.6/N - 3.6/(N+2) = .3}}}
3.6(N+2) - 3.6N = .3N(N+2)
.3N^2 + .6n -7.2 = 0
3N2 + 6N - 72 = 0
N^2 + 2N - 24 = 0
(N+6)(N-4) = 0, N = 4, Or1ginally