Sorry Keith, I am not confusing thrust and THP. On the other hand I think you have not understood my post, which offers for discussion a possible scenario. I don't think it helps to quote the standard section from your notes, which in Logic is called "appealing to revered authority" The examiner has something else in mind.
If the power available curve is flat at speeds near Vimp then Vimp gives the max excess of power. If the slope of the power available curve is rising with TAS then Max power excess will be higher than Vimp.
If the examiner gave 95kt as the correct answer then he presumably had a reason for it. Perhaps he has performance curves for a specific twin that he has used to make up the question. On the other hand it may just be a feedback error
How are things with you these days?
Dick