Login

Welcome, Guest. Please login or register.

October 21, 2025, 08:16:09 pm

Author Topic: Need Help with this question.  (Read 573 times)  Share 

0 Members and 1 Guest are viewing this topic.

ArthurJ

  • Victorian
  • Adventurer
  • *
  • Posts: 16
  • Respect: 0
Need Help with this question.
« on: October 16, 2013, 10:34:20 pm »
0
Just doing the 2008 Specialist Maths exam 2 VCAA ,

I was finding it fine untill i got to question 17 in the multi choice, ive looked at worked solutions on itute but cant understand how they got started.

I get theres a ratio of 2:1 but thats about it, i need help talking this problem, all help is appreciated :)!

BasicAcid

  • Victorian
  • Forum Obsessive
  • ***
  • Posts: 207
  • Respect: +135
Re: Need Help with this question.
« Reply #1 on: October 16, 2013, 11:00:41 pm »
0
QR = QO + OR = OR - OQ
0.5PQ = 0.5(PO + OQ) = 0.5OQ - 0.5OP

OR - OQ = 0.5OQ - 0.5OP
OR = 1.5OQ - 0.5OP
OR = 3q/2 - 1p/2