92% good quiz though ian

thought question 7 was confusing as per chip

made a wrong click on 17 (25 kg instead of 50)

couldn't be arsed to think about question 44 properly by the time i got there

couldn't see how getting 3 wrong answers would give 92%, but as there is 2 wrong on Q7 it must count as 4% - but it's not possible to get only 1 out of 4 wrong