Pacing the TMUA: the five-minute rule

Twenty questions in 75 minutes is a little under four minutes each. No calculator, no negative marking. That last point decides your whole strategy: never leave a blank, and never let one question eat the time three others need.

What the timing data says

Plot accuracy against time spent and you get an inverted U. The fastest answers, under about ten seconds, are mostly guesses and misclicks, so they score badly. Accuracy climbs, peaks on questions that take a bit of real thought, then falls again on the ones people grind on longest. The slowest answers are barely better than the quickest.

There's a sharper signal too. A correct answer takes around two minutes on average; a wrong one takes longer. Once you're past that, extra time usually means you're on the wrong track, not that a breakthrough is coming.

So the rule is blunt: past about five minutes on one question, you're buying almost nothing.

How to pace it

• First pass: answer everything you recognise straight away, under two minutes each.
• Stuck? Flag it. If a question hasn't opened up after 90 seconds, put down your best guess, flag it, and move on. You keep the mark and free the time.
• Second pass: come back to the flagged ones. Fresh eyes crack questions that felt impossible the first time.
• Never blank. With no negative marking, a blank is a guaranteed zero and a guess isn't. Fill every answer in the last minute.

Why walking away wins

Every question is worth one mark, hardest or easiest. Five minutes rescuing one hard question is five minutes you didn't spend banking two or three easy ones, and the data says the rescue rarely pays. Knowing when to walk away is worth more than raw speed, and you only learn it under the clock. Do a timed mock exam and practise it for real.