C, I felt that the system requirements should only be decided _after_ feedback is gained from users regarding their opinions. System requirements includes the purpose anyway... ?
Yeah I was just like "it might have an impact on the people assessed by the system as it might affect their self-confidence or they may become dependant on the system for assessing the beauty of people's faces." Come on, that was a philosophy question, not damn IPT :P
Here are the 'proper' solutions (not checked by BOS):
1. A
2. D
3. A
4. D
5. A
6. B
7. B
8. C
9. D
10. B
11. C
12. C
13. D
14. C
15. B
16. A
17. C
18. C
19. B
20. B
I would scan in a copy of my paper but I've scribbled notes all over it ^_^;
I did that but my answer for part (ii) didn't look like theirs? It was very different and I spend pages and pages trying to factorise it, but it never matched...
I said the total area is
A = 1/2.s.x.sina + 1/2.(l-x).s(l-x)/x
and I think I'll get some marks for that but... I just...