For parents - GCSE maths may seem daunting - but BBC Bitesize has tips that can help them to help their child through their exams.

Can you solve the maths question? (stock image) (Image: Getty Images) A GCSE maths question is so difficult, it left 85% of people scratching their heads in a bid to try and answer it correctly.

Learn how to calculate the equation of a line from a graph, work out the gradient from an equation, and visualise intercepts with this step-by step guide.

She said: "This GCSE Maths question relates to changing ratios. It requires students, and parents, to correctly find the value of one part, in order to work out how much money Chris gave to Errol.

Students in England are funded to retake maths and/or English until they achieve a GCSE grade 9 to 4. For students with a grade 2 or below, they can either study towards a pass in functional skills ..