一个架子上有八个奖杯:F,G,H,I,K,L,M,O。架子有三层:上层,中层,下层。每层至少有两个奖杯。其它条件是: 下层比上层奖杯多。 I 放在中层。 K 放得比 F 高。 O 放得比 L 高。 F 和 M 放在一层。
Analysis: This is a grouping game with a bit uncertainty. Most grouping games are as easy as sequencing games in that the rules are straight forward. As long as you can diagram the rules correctly, you should be able to breeze through the questions rather easily. The only tricky part of this game is that we do not know how many 奖杯 are on the middle and bottom shelf. Eventually, two frames are possible, one is very restricted and the other is kind of wide open. Without further due, the diagram for this game can be found in the following grapah:
19. Which one of the following could be a complete and accurate list of the 奖杯 placed on the bottom shelf? A) F, M B) F, H, M C) G, H, K D) F, G, M, O E) G, H, L, M
20. It is fully determined which of the shelves each of the 奖杯 is placed on if which one of the following is true? A) I and M are placed on the same shelf as each other. B) K and G are placed on the same shelf as each other. C) L and F are placed on the same shelf as each other. D) M and H are placed on the same shelf as each other. E) H and O are placed on the same shelf as each other.
21. Which one of the following must be true? A) O is placed on a shelf higher than the shelf M is placed on B) K is placed on a shelf higher than the shelf G is placed on C) I is placed on a shelf higher than the shelf F is placed on D) G is placed on a shelf higher than the shelf O is placed on E) F is placed on a shelf higher than the shelf LG is placed on
22. If G is placed on the top shelf, then which one of the following could be a complete and accurate list of the 奖杯 placed on the middle shelf? A) H, I B) I, L C) H, I, L D) I, K, L E) F, I, M
23. If L is placed on a shelf higher than the shelf H is placed on, then which one of the following must be true? A) F and G are placed on the same shelf as each other. B) G and H are placed on the same shelf as each other. C) H and M are placed on the same shelf as each other. D) I and G are placed on the same shelf as each other. E) K and O are placed on the same shelf as each other.