//Have you got the maths skills of a 16-year-old?//
If these really are to test the maths skills of a 16 year old, this country is in big trouble. For example, Question 5:
//Liam pays £20 for 24 chocolate bars. He sells each of them for £1. How much profit did he make?//
So you have to multiply 24 by one and deduct 20 from the answer. A five year old could do it.
Question 9: you have to multiply 3 by 5 by 4.
I’m with Tora. This is not maths. Most of it is early primary school arithmetic. Possibly questions 1 and 3 may take the level up to about year three or four of primary school – at a stretch.
//I took my ‘O’ level maths before calculators were common (or allowed in exams), and I can recall at least two of the questions in my ‘O’ level maths exam, one involved finding the equation to a straight line drawn on a graph, the other was to determine the volume of material forming a length of hollow pipe, truncated at an angle.//
Indeed, Hymie. For once we sing from the same hymn sheet. Here’s a Maths ‘O’ Level exam paper from 1968:
http://www.burtongrammar.co.uk/category/life-and-times/school-exams/1968-maths-o
Particularly, see the explanatory note at the top:
“If you are slightly confused by the lack of Calculus – there were two Joint Matriculation Syllabuses, ‘A’ and ‘B’. The latter, shown here, was for Secondary Modern schools that allowed GCE examination. Grammar Schools took Syllabus ‘A’ which also included differentiation, integration, curve-fitting and maxima/minima (dy/dx = 0).”
I don’t actually believe the the questions in the quiz are representative of today’s GCSE paper. But nor do I believe that today’s paper would go into anything like the range of topics in the 1968 paper (and bear in mind the example shown is NOT the Grammar School version).