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# Edexcel IAL C12 23rd May 2018 watch

1. Hi all! So how was the paper?!
I couldn't do the binomial part (b). But overall it went well
2. (Original post by anjumzz14)
Hi all! So how was the paper?!
I couldn't do the binomial part (b). But overall it went well
to be frank it was easier than expected. For the second part of the binomial.

b)
when x=0.1
(1+0.1/3)^18

all u had to do is sub in 0.1 into the x (in part (a)). so if i'm correct u will get 1.8002
3. What did you get for k in the last question?
4. 10.8?
5. what did you get for the last bicycle question part? 82 is wrong yes?
6. Are you asking about the N value? I actually got 80. I think I'm wrong because I didn't use the summation formula. They asked about the "Nth day" on which the person covered a total of 1200 km. So I used ar^N=1200
7. Sorry ar^N-1 **
8. its 32 because when n=34 distance=1250 so 82-50=32
(Original post by pun_fresh)
what did you get for the last bicycle question part? 82 is wrong yes?
9. pun_fresh yes you are wrong
goodbye dream
10. (Original post by jooon731)
pun_fresh yes you are wrong
goodbye dream
**** off joon
11. (Original post by anjumzz14)
Are you asking about the N value? I actually got 80. I think I'm wrong because I didn't use the summation formula. They asked about the "Nth day" on which the person covered a total of 1200 km. So I used ar^N=1200
I didnt use the sum formula either, I did ar^33 because thats the last day and got 82
12. 34 dude. The answer I got is 33 point something. So I think should spend one more day.

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