How do this add up?

https://static.aqa.org.uk/assets/pdf_file/0008/315566/AQA-L3-CERT-GDE-BDY-JUN-2019.PDF To get a overall C you need 70marks and on the individual papers paper1 = 32 for a c Paper2 = 37 for a C that added up makes 69 not 70 am i going mad?
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