Students who got almost half of the answers wrong in their Maths A-level this summer will get a grade A, it has emerged.

Just 54 per cent is required for an A in this year’s OCR exam, according to a leaked copy of the grade boundaries seen by The Daily Telegraph. It is believed to be the lowest amount of marks ever needed to secure a top grade in a Maths A-level.

Students with 43 per cent will be awarded a B, those with 33 per cent will get a C and those with 13 per cent will pass their A-level with a grade E.

Documents revealing the grade boundaries for Edexcel’s A-levels also surfaced online on Wednesday, which showed that pupils need to get 55 per cent for a grade A in Maths, 34 per cent for a C and 14 per cent for an E.

This summer was the first year that pupils of all abilities took the new, reformed Maths A-level which was designed to be more challenging and better prepare sixth form students for university. But the leaked documents reveals that pass marks have been drastically reduced compared to previous years.

It comes as thousands of students prepare to pick up their A-level results on Thursday. Pearson revealed last week that dozens of students face having their Maths grade withheld amid an investigation into an online leak which saw exam questions circulated on social media ahead of the exam.