A-Level AQA question

Issue: They gave you 2 mean **widths** not a mean length and a Mean Width, so it's very easy to be misled here.

After fixing that yourself, you can work out the surface area as a rectangle as they ask you to do.

As for percentage error, you just put the uncertainty over the absolute reading, and multiply by 100.

Hope that helps and good luck with your Exams !

The question was wrong so don't worry. It SHOULD have one row as Mean Width and one Row as Mean Length. I just corrected the question becuase it wouldn't make sense otherwise, and a Gill must have a Width and Length so you can fix this broken question with some thinking.

In the exam the question will actually be solvable without having to fix it first ! 😅

I hope that all makes sense. Basically it was a bad question.