Well I can certainly see your logic, but for the middle one, surely the lower one still has to come into effect? Looking at the bottom part, it has 10kn up, 5 kn down, so does that mean the bottom part has an overall resultant of 5kn up? THEN you apply your first logic to give result 15kn downwards Then, as 15kn is downwards for the middle bit, you can use that but this is where Im getting confused, because you've already used the lower components tofind out the middle bit