2. If Junsu has a good voice then BoA is my close friend. Junsu has a good voice. Junsu has a good voice and BoA is my close friend, or BoMi is a good actress, implies that if Jaejoong is handsome, then Yoochun is a good composer if and only if Yunho is a great leader. Junsu has a good voice and BoA is my close friend implies that Changmin is snarky if Yunho is a great leader if and only if Ryeowook is the youngest. If Junsu has a good voice, then Yoochun is a good composer if and only if Yunho is a great leader, implies that Yunho is a great leader if and only if Ryeowook is the youngest. Jaejoong and Changmin will not both be handsome and snarky. Therefore, Jaejoong is not handsome. (U, B, O, J, Y, H, C, R)


3. If Donghae is a good dancer then Kibum is not a good actor, but if Kyuhyun is the youngest then Kangin is the shortest. If Kibum is not a good actor then Heechul is not the prettiest, and if Kangin is the shortest then Siwon does not have the bushiest eyebrows. If Heechul is the prettiest, then Eunhyuk is not the monkey although if Siwon does not have the bushiest eyebrows then Sungmin has the most aegyo. Donghae is a good dancer and Kyuhyun is the youngest. Therefore, Eunhyuk is not the monkey and Siwon does have the bushiest eyebrows. (D, K, Y, A, H, W, S, E)

SOLVE USING THE RULES OF INFERENCE 8D

Tis okay if you can't prove the validity of the first one; after all, there is NO WAY that Joongie cannot be handsome.

2. If Junsu has a good voice then BoA is my close friend. Junsu has a good voice. Junsu has a good voice and BoA is my close friend, or BoMi is a good actress, implies that if Jaejoong is handsome, then Yoochun is a good composer if and only if Yunho is a great leader. Junsu has a good voice and BoA is my close friend implies that Changmin is snarky if Yunho is a great leader if and only if Ryeowook is the youngest. If Junsu has a good voice, then Yoochun is a good composer if and only if Yunho is a great leader, implies that Yunho is a great leader if and only if Ryeowook is the youngest. Jaejoong and Changmin will not both be handsome and snarky. Therefore, Jaejoong is not handsome. (U, B, O, J, Y, H, C, R)


3. If Donghae is a good dancer then Kibum is not a good actor, but if Kyuhyun is the youngest then Kangin is the shortest. If Kibum is not a good actor then Heechul is not the prettiest, and if Kangin is the shortest then Siwon does not have the bushiest eyebrows. If Heechul is the prettiest, then Eunhyuk is not the monkey although if Siwon does not have the bushiest eyebrows then Sungmin has the most aegyo. Donghae is a good dancer and Kyuhyun is the youngest. Therefore, Eunhyuk is not the monkey and Siwon does have the bushiest eyebrows. (D, K, Y, A, H, W, S, E)

SOLVE USING THE RULES OF INFERENCE 8D

Tis okay if you can't prove the validity of the first one; after all, there is NO WAY that Joongie cannot be handsome.