Graduate trader interview - case study round tips?

Hi all,

This is with a prop firm based in Australia. I've looked around the forums and Glassdoor, and the case study interview reviews/posts I find are mostly with FlowTraders (some pasted below): - ETF and arbitrage: 'Given this ETF made of 3 stocks and these available trades, what should you do to generate risk free profit? Something changes, how do you remain perfectly hedged?' 'Case study is pretty hard and is about deriving some properties of ETP's and finding arbitrage' 'Have a basic knowledge of ETFs and arbitrage. Also practice quick mental math' - general behavioural questions: 'risk taking and acting under pressure'

I think the case study will consist of basic options/ETF, since the firm I'm interviewing for trades a lot of Asian index options. If anyone has more advice/experience to share that will be much appreciated!

Thank you