If I’m focused on practicing 50m Q, can they also cover for the 25m Q of the same topic? Are the 25m Q just shorter and more simple than 50m Q? Thanks Sir.
Yes they can cover the same topics. The 25 mark questions have less to do that the 50 mark questions because they are expected to take half the time, but that does not mean that they are simpler.
You need to practice both types of questions and you will find plenty examples of both in your Revision Kit. (I assume that you have a Revision Kit from one of the ACCA Approved Publishers, but if not then it is essential that you buy one.)