Cashflow

Yes, of course he could 30 marks maximum. Lucky you - I think we're all praying that he does, but sadly it's unlikely

So 30m is highly unlikely okay ryt maybe 15m, Is there any question in the old past paper? If yes, can u tell me?

There are lots of them - get a revision kit / exam kit from one of the reputable publishers and you'll find examples in there (I can't remember names and exam dates when cash flows were asked but a trawl through past exams by you should find them quickly enough - they used to be asked as part of question 3)