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# C2 HELP! exam tomorrow watch

1. Hi I am trying to cram in my revision today and am getting SOOOO stressed.

The first past paper i tried i got stuck. and on 11ii even with the markscheme i cant get the answer

http://www.mei.org.uk/files/papers/c2_june_2012.pdf

Could you give me a step by step on how to do it after the last point on the markscheme

3 × 2n – 1 : 2 × 3n – 1

I have tried logs and everything but cant complete it
2. It's a three mark question - you won't need anything as complicated as logs. What does "the ratio of a and b" actually mean? And what do you know about a and b?
3. (Original post by user1-4)
Hi I am trying to cram in my revision today and am getting SOOOO stressed.

The first past paper i tried i got stuck. and on 11ii even with the markscheme i cant get the answer

http://www.mei.org.uk/files/papers/c2_june_2012.pdf

Could you give me a step by step on how to do it after the last point on the markscheme

3 × 2n – 1 : 2 × 3n – 1

I have tried logs and everything but cant complete it
Taking logs is not really the way forward.
What you want to do is find the lowest common factor of both sides and divide through by that.
4. U divide by 5, but that still diesnt get me anywhere. I juat get 2 and 3 and then am stuck there.
5. (Original post by user1-4)
U divide by 5, but that still diesnt get me anywhere. I juat get 2 and 3 and then am stuck there.
5 is not a common fact of 2 and 3 . . .
6. There is no common factor of 2 and 3?
7. (Original post by user1-4)
There is no common factor of 2 and 3?
So instead divide by the LCM which is what I meant
The LCM being 6.
8. sorry i thought i replied.
Nevermind though, I have given up on this. im gonna fail c2 tomorrow
9. just keep calm and make you dont get FRIMPONGED during the exam, and you will be fine

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