What's wrong with this picture?

[doubtingmichael]

I thought I was doing quite well at this on-line quiz till I got to the end of it:

Comments

[andrewducker]

I'm blaming grade inflation.

[doubtingmichael]

Ah. So it's people in the future, when they've added more questions to the test, who are scoring more than me. Thanks, that makes sense.

[anef]

So how does that work, exactly?

[doubtingmichael]

I honestly don't know what's going on. My best guess is that it's a typo of "higher" for "lower". But they might be going for a very subtle joke.

[woolymonkey]

I got the same % (only 17/20)! Am dead impressed with myself. Mind you, it took a bloomin' age and I think I've pulled a muscle in my brain. All I can say is thank god for rounding and multiple choices :)

Will try it on A and O tomorrow. I wanted to do it now while I was alone in the kitchen as otherwise one of them would tell me the answer (or start arguing with each other about the most efficient method and interesting extension problems) before I even know what I need to be thinking about.

[doubtingmichael]

I must admit there were a couple of questions where the multiple choice format saved me from a blunder, when my in-my-head sums gave me a result that wasn't on offer!

[woolymonkey]

Don't want to give away other monkeys' performance ;) but I can report you get the 85% were higher message with scores of 17,19 and 20.

With my very rusty O level, I should have got all of them except the last one, but I messed up 2 more or less at random, and would probably always mess up roughly that number just because I have to concentrate so hard. The only really easy one for me was the rug because it's the only kind of maths I actually do.
If I'd come to this straight from O Level, I'd have been faster and made less careless mistakes, but I'd have messed up a couple of other questions that I can get right now because the family maths has rubbed off on me by accident - especially the one about being 60% reduced.

[woolymonkey]

Multiple choice saved me from blunders too. It also saved me having to work out long numbers as it was often enough to know the first and last digits.