About 10 pages. I think they just count the pages and give marks accordingly.

When I did my O/A Levels, there was a fixed marking scheme according to which marks were awarded. That scheme had explanations for each and every mark being awarded. They followed those marking schemes strictly so nobody objects as people get what they deserve. I think FPSC should also publish a marking scheme instead of keeping their checking obscure. They should let people see their marked papers as well, nothing should be secret in a democratic country. There is a right called Right to Information.