Question

Vectors. Let A, B and C be collinear and such that AB : BC = 3 : 2. Find AB : BC expressing your answer in terms of integers

Answer 1

AB : BC = 3:2
2AB = 3BC
AC = AB + BC
2/3BC + BC = 5/2BC = -5/2CB
Then I don't know what to do :S

Answer 2

what is : ?

Answer 3

nm I think I worked it out
2AB = -5CB so AC : CB = -5:2