2019 · Q79
If M is brother of N, B is brother of N and M is brother of D, then which one of the following statements is definitely true?
general-mental-abilityblood-relations-directions
- AN is brother of B
- BN is brother of M
- CN is brother of D
- DM is brother of B
Explanation
M is N's brother, B is N's brother, and M is D's brother - so M and B are both male siblings of N, which means M is B's brother. Nothing in the data fixes the gender of N or D, so only D is definitely true.