[WalterBright]

> Doing that sort of mental arithmetic in a high pressure situation has very little to do with an accounting degree.

Yeah, it does. Accountants work with percentages all the time. And if they can't do literally trivial arithmetic, they aren't fit to be accountants.

He'd give them an hour.

So let's see. What's 10% of $20,000? Then double it? (There are many other shortcuts to the answer.)

[ghaff]

Yes. Give someone an hour, of course. I'd expect any minimally educated white collar professional to be able to that without a calculator.

As a verbal problem to answer in ten seconds? I'm more sympathetic with people freezing even if I certainly expect I'd be able to do it absent extreme pressure.

[WalterBright]

If someone regards an interview question as extreme pressure, I don't know what to say. Except advise the person to do more job interviews until they get used to it.