best way to approach the questions in P7 papaer exam?

Get used to the style of the questions (by looking at past exams published on the ACCA website (you can also find them on Opentuition website) or in the revision kit / exam kit from a reputable publisher)

And then get used to the style of the published solutions to those past questions (by looking at past exam answers published on the ACCA website (you can also find them on Opentuition website) or in the revision kit / exam kit from a reputable publisher)

Familiarisation with the material and the style is fundamental to your chances of success

Hope that helps