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OCR (not MEI) C2 - Wednesday 20th May 2015

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Reply 320
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SAMBAN
second log one
Reply 321
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SAMBAN
does anyone know what the second part of the log question was the question
Original post by SAMBAN
does anyone know what the log question was


Log2(X) + Log2 (Y) = 8
Log2 (X^2/Y) = 7

something like that
1st log q please???
Original post by Rubberduckiller
what exactly was the question


2n-3 = 18000
Reply 325
Avatar for Jmedi
Jmedi
6
Original post by Patsella
Can someone write out how the 2n question works ?? So confused !!!!


Calculation of N ; C2 2015 q.pdf
I can't even remember what was in the exam now...
Reply 327
Avatar for Jmedi
Jmedi
6
Original post by Nuvertion
It's better to compare this to June 2014. I reckon the grade/UMS boundaries will be pretty similar.


What was the mark for 100% in june 14?
Reply 328
Avatar for SAMBAN
SAMBAN
what were the answers to the log questions is the mark scheme right
70 for full UMS last june
Original post by terry_011
Log2(X) + Log2 (Y) = 8
Log2 (X^2/Y) = 7

something like that


Anyone else get 32 and 8 or something similar?
Was easy just made ****ty mistake on the last question.
Original post by SAMBAN
what were the answers to the log questions is the mark scheme right


2n-3 = 18000, that question n=17.1,
Simultaneous equations x = 32, y = 8
Reply 333
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SAMBAN
i got 6.35 and 0.31
Reply 334
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Jmedi
6
Original post by AstroNandos
Anyone else get 32 and 8 or something similar?



Yeah i put 32 and 8
Thank you !!!!
Original post by Jmedi
What would the graph for question 9(iii) be look like?
(edited 8 years ago)
Not entirely sure whether this is the place to ask but:

For the question to calculate N, I think my method was correct however in my quadratic formula my c value was 5500, when it should have been 5496, how many marks will I lose for this?

Also, could someone post their solution for the final question? Many thanks.
1 or 2 marks
Yeah i put 32 and 8

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