Exam board makes last-minute changes to two A-level papers after leak

As well as allegations of leaks, there have been complaints about errors in GCSE and A-level papers issued by the OCR and AQA exam boards.An examination board investigating allegations of leaks has been forced to make last-minute changes to two A-level papers that were taken on Monday after another apparent breach of security.Pearson, which owns the Edexcel exam board, said it had replaced questions in its statistics and further pure maths papers after the board was informed that some students &