Exam board Edexcel has launched an investigation into how part of an A-level maths paper was leaked online. Blacked-out images of two questions were shared on social media on Thursday afternoon.

Here's your chance to have a go at some of the toughest A-level maths questions in papers from the past six years from exam boards AQA, Edexcel and OCR.

An investigation has been launched after images of an A-Level maths exam were shared online. Pictures of an Edexcel paper appeared shortly before the test was sat by students on Friday.

Questions from today's A-Level exam leaked online before the test. Two exam questions from Edexcel's maths paper 3 appeared on Twitter last night.