Roadrunner's guess of 30 is wrong. BLS, nobody has finished yet, so if you still want to try you've just got less time to solve it. I think the answers to 2 parts have already been posted in this thread anyway.
I don't know, it seems to have upset a few people and been too difficult. I might have to go back to simple ways to start races for a while. I can maybe see how you've got there, but it's still not correct. Sorry.
do I just say a number here seeing as its 3am and I've joined the party late therefore have no intention of sitting here and working out the problem I'll say 44
It's not even that bad, even if you didn't do Maths A level or higher you could just type in "What is i" on google, it comes up straight away. If anything, they should be harder than this, it's better than the original C+P thread and waiting for someone to say start
No worries, you tried something different to suit different people. I kept getting the equation just off a bit. I have the answer now.
Is there any rounding up involved at all? Because just about every answer I'm getting ends up a recurring decimal.