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# Mr M's OCR (not OCR MEI) Core 1 Answers May 2015 watch

1. (Original post by Mr M)
Sketch
thank you
2. thanks a lot for this - would you be able to post an unofficial question paper so I, and others, can remember the questions to the answers? would be very helpful, thanks a lot
3. (Original post by nozzelf78)
thanks a lot for this - would you be able to post an unofficial question paper so I, and others, can remember the questions to the answers? would be very helpful, thanks a lot
Ask your teacher to show you the paper on Monday.
4. Hello,
I think for the differentiation question I differentiated to give -(1/3)x^(-2/3) and subbed in -8 to get -1/12. How many marks would I lose?
5. (Original post by Mr M)
Q3iii) Gain 1 markQ5ii) Lose 1 mark8iii) Gain 1 mark10iii) Lose 1 mark
thank you
6. (Original post by 10101010)
Hello,
I think for the differentiation question I differentiated to give -(1/3)x^(-2/3) and subbed in -8 to get -1/12. How many marks would I lose?
Drop 2.
7. What do we reckon the grade boundaries will be like then? I thought this was quite a hard paper but maybe that's just me...
8. (Original post by WishIHadRevised)
What do we reckon the grade boundaries will be like then? I thought this was quite a hard paper but maybe that's just me...
9. (Original post by TeeEm)
Haha thanks.
10. (Original post by WishIHadRevised)
Haha thanks.
11. I was wondering about how many marks I would lose on these questions:

On question 6 I substituted y into the other equation but I rearranged I wrong therefore I got the wrong answers, would I still get one mark or none?

And on 7b, I didn't put the - sign so have I only lost one mark?

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12. For 6) I wrote the y values as 13/3 and -1 instead of -13/3 and 1 but I got the x values correct.

How many marks will I drop?
13. How many marks is 100 ums?
14. (Original post by Suprajaa)
I was wondering about how many marks I would lose on these questions:

On question 6 I substituted y into the other equation but I rearranged I wrong therefore I got the wrong answers, would I still get one mark or none?

And on 7b, I didn't put the - sign so have I only lost one mark?

Posted from TSR Mobile
6 - you might get two if your subsequent work in ok

7b - drop 1 mark
15. (Original post by alexkrave)
How many marks is 100 ums?
I expect it will be 72 but no one knows as the papers haven't been marked yet.
16. (Original post by Sambho)
For 6) I wrote the y values as 13/3 and -1 instead of -13/3 and 1 but I got the x values correct.

How many marks will I drop?
Probably just one.
17. (Original post by Mr M)
I expect it will be 72 but no one knows as the papers haven't been marked yet.
Are they usually 72, or have they been 70 or 71 over the past years?
18. (Original post by alexkrave)
Are they usually 72, or have they been 70 or 71 over the past years?
You'd have to look. It isn't something that interests me.
19. Okay! Thanks for your help
20. Is it possible to drop 1/2 mark or do the examiners take away a mark?

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