Why are Physics 9702 GT marks different?

[animusv3]

There are supposed to be 270 total marks across the 5 papers (40+60+40+100+40), but in all the GTs (e.g. http://papers.xtremepapers.com/CIE/...A and AS Level/Physics (9702)/9702_w12_gt.pdf), it says that

The maximum total mark for this syllabus is 260 for A Level and 130 for AS Level.

Why?

 

[saadgujjar]

There are supposed to be 270 total marks across the 5 papers (40+60+40+100+40), but in all the GTs (e.g. http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w12_gt.pdf), it says that


Why?

for practical they convert marks out of forty into 30 for eg if your marks are 30 out of forty then your actual marks are calculated like 0.75 multiply by 30