With the given technique, you can easily score a safe 64 even after you've given your best in messing up the paper. With issues in almost 50% of the paper, you can still score decent marks. However we cannot just go without taking the conservative technique, add 10% time and deduct 10% marks. With this you you've taken 132 min to score 43.5 mks. This leaves you with almost 50 min for the last two questions under the conservative estimate.

If you notice one thing here, the first hour of the exam is very crucial, where the feedback suggests that its real difficult to cross 40 in Costin FM exam, with this techique you are standing on almost 28 after first hour, Feels good, Han!!