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# OCR Maths B Unofficial Markscheme

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i put 121 because i though that 120 would be when they were at the same place and 121 was when they overtook each other.
This is why it was badly worded! Like anything >120 would be the point where they overtake, so idk why they didn't just ask for the point where they met. Bloody OCR
2. On a scale of 1 - 10, how hard did you find the exam?
3. (Original post by studentgcse2016)
same!! pretty sure thats right
What are your predicted grades in maths? Like what you aiming for?
4. Did anyone else put 0.1 for the probability of picking the apple greater 130kg or something like that? The histogram one

1/10

If not what did you put
5. (Original post by willg66)
Did anyone else put 0.1 for the probability of picking the apple greater 130kg or something like that? The histogram one

1/10

If not what did you put
Yeah, it was 0.1
Yeah, it was 0.1
Can you remember any other answers you got even if you can't remember the question tell me so I can try and remember what I got cheers
7. What was the apple question?
8. (Original post by willg66)
Can you remember any other answers you got even if you can't remember the question tell me so I can try and remember what I got cheers
The 1 where it was like 5^y x 5^4 = 1 I got y = -4 cause anything ^0 is 1
Yeah, it was 0.1
Why was it that ? I can't even remember the question
10. (Original post by Psychosis mock)
The 1 where it was like 5^y x 5^4 = 1 I got y = -4 cause anything ^0 is 1
Yeah I got that
And the next one was the value of P is 6?
11. (Original post by willg66)
Yeah I got that
And the next one was the value of P is 6?
Yeah I got 6 too, but what's the apple question!!
12. (Original post by Psychosis mock)
What was the apple question?
The histogram and it said what is the probability that some dude picks an apple of a weight greater than 130 or something like that it simplified to 1/10
13. Anyone else get 1/40 for the apple probability? Can someone explain how they got 0.1? Thanks!
14. This is the exponential graph we had to sketch 3^x
15. (Original post by willg66)
The histogram and it said what is the probability that some dude picks an apple of a weight greater than 130 or something like that it simplified to 1/10
Don't u do 6/60 x 5/59
Which is 1/118
16. (Original post by Psychosis mock)
Don't u do 6/60 x 5/59
Which is 1/118
Don't know where you've got the 5/59 from? Unless the question said he took two and didn't take it back which would be correct😩 I just got 6/60 simplified to 1/10
17. (Original post by Psychosis mock)
Don't u do 6/60 x 5/59
Which is 1/118
Oops! I did 60 x 60 for the denominator, that's stupid. Oh well I think I did the 6 x 5 bit write. Lets hope for method marks! I think it was 3 marks right? Thanks for explaining though!
18. (Original post by willg66)
Don't know where you've got the 5/59 from? Unless the question said he took two and didn't take it back which would be correct😩 I just got 6/60 simplified to 1/10
It's cause there are 60 apples and 6 are the given weight so when he takes one both numbers decrease by one to form 5 and 59 because it's the probability of him picking 2 apples and he doesn't put them back
19. (Original post by Psychosis mock)
It's cause there are 60 apples and 6 are the given weight so when he takes one both numbers decrease by one to form 5 and 59 because it's the probability of him picking 2 apples and he doesn't put them back
Yeah that's right then 😩 That's my second stupid mistake I've made not reading the question 😭 How many marks was it
20. (Original post by willg66)
Yeah that's right then 😩 That's my second stupid mistake I've made not reading the question 😭 How many marks was it
3?

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