SOLUTION: A group of students decide to go out for lunch after the examination. The account of R144 must be paid by the group. Six students cannot pay, so each of the others must pay an extr

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A group of students decide to go out for lunch after the examination. The account of R144 must be paid by the group. Six students cannot pay, so each of the others must pay an extr      Log On


   

Question 604793: A group of students decide to go out for lunch after the examination. The account of R144 must be paid by the group. Six students cannot pay, so each of the others must pay an extra R2. Determine the number of students in the group.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(144 / s) + 2 = 144 / (s - 6)

multiplying by s(s - 6) ___ 144s - 6(144) + 2s^2 - 12s = 144s

s^2 - 6s - 432 = 0

factoring ___ (s - 24)(s + 18) = 0