Actually, Qiao Yu felt that he could tackle the big questions too. He had the confidence; he just couldn't be bothered to gamble.
After all, who knows what's going on in the examiner's little head?
If they suddenly feel generous and give extra points out of sympathy, it would be awkward.
Qiao Yu always believed in one principle: gambling only means a chance to win, but not gambling means you definitely won't lose.
From this point of view, Qiao Yu had a very steady mindset. For instance, any venture requiring a significant investment for substantial returns, unless he's 100% sure, he won't even glance at it. His so-called market research mainly involved risk-free opportunities.