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# OCR GCSE maths Unit C Higher - June 2013 watch

1. i put y = x^3 -2x because it crossed the x axis twice?
2. (Original post by Bethany_)
I thought the last question, the probability one was good! I got George with the highest chance.
There was also the question where you had to say how long the cuboid would take to fill (231l) at 0.6 litres/second?
I believe the correct method for filling the cuboid is to do 231/0.6=385
385/60= 6 remainder 25
Answer=6 minutes 25 seconds

Yeah, i got George as well because:
0.6x0.6=0.36=Georges probability
0.5x(5/9)=0.3333.. = Alices Probability

George has a higher probability than Alice.
3. (Original post by Bethany_)
I thought the last question, the probability one was good! I got George with the highest chance.
There was also the question where you had to say how long the cuboid would take to fill (231l) at 0.6 litres/second?
Got george as well!!!! Jus wondering on the working out, if u used a tree diagram or not cuz i did but i put the branches the wrong way round but still showed the correct values and the chance that george has got. How many marks do u think that is out of 6??
4. I'm pretty sure as long as the values of the tree diagram were of the correct value, you will get full marks.
I used the tree diagram method for this question, although it didnt state anywhere that you HAD to use a tree diagram (I don't think), so as long as you got the correct answer, you be on track for 6/6
5. Does any one remember what the simultaneous equation was and how to answer it?
6. (Original post by Thomas28)
Does any one remember what the simultaneous equation was and how to answer it?
I can't remember exactly what the equations were but it was something like y=3x+2 and y=x^2+3x+6 or something

You had to make them equal to each other then simplify to find x then substitute each of the x values into the original equations to fin y! I think one of the y values was 1.25 but I'm not sure.....
7. bump
8. anyone know if the paper's up yet?
9. Still waiting.....
Usually its after results day that the paper is released online
10. Last bump to say good luck on thursday
11. Sooooooo.... How did everyone do??

I got an A* on the Unit C Paper and just managed to scrape an A* overall
12. I got my A* too

Unit A - 91%
Unit B - 100%
Unit C - 94%

13. can anyone post the paper? thanks

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