Pointing to a man, a woman said, 'His mother is the only daughter of my mother.' How is that man related to the woman?
Answer: A
The only daughter of my mother = myself. So his mother is the woman. Therefore, the man is her son.
Q.2Medium
A is the brother of B. B is the sister of C. C is the mother of D. D is the son of E. How is A related to D?
Answer: A
A is brother of B, B is sister of C (so A and C are siblings), C is mother of D. Therefore A is uncle of D.
Q.3Medium
In a family of five members, P is the father of Q and R. Q is the mother of S. T is the brother of P. How many males are there in the family?
Answer: D
P is male (father). T is male (brother). R's gender unclear. S's gender unclear. Q is female (mother). Insufficient information.
Q.4Medium
Pointing to a photograph, Arun said, 'He is the son of my mother's only son.' Who is the person in the photograph?
Answer: C
My mother's only son = myself (Arun). So the person is the son of Arun = Arun's son.
Q.5Medium
If all roses are flowers, and some flowers are red, which of the following must be true?
Answer: D
All roses are flowers (true). Some flowers are red (true). But this doesn't guarantee roses are among those red flowers.
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Q.6Medium
Statement: All doctors are professionals. Some professionals are not ethical. Conclusion: Some doctors are not ethical.
Answer: C
All doctors are professionals (given). Some professionals are not ethical (given). But it's possible that the unethical professionals are not doctors. Conclusion cannot be determined.
Q.7Medium
In a family, there are 6 members: A, B, C, D, E, F. A is married to B. C and D are children of A and B. E is married to C. F is the child of C and E. Who is the mother-in-law of E?
Answer: B
E is married to C. C is the child of A and B. B is the mother of C. Therefore, B is the mother-in-law of E.
Q.8Medium
All smartphones are electronic devices. Some electronic devices are expensive. Conclusion: Some smartphones are expensive. Is this conclusion valid?
Answer: B
The conclusion does not follow logically. Some electronic devices being expensive doesn't guarantee smartphones are included in that some.
Q.9Medium
In a family, X is the sister of Y. Y is the brother of Z. Z is the father of W. How is X related to W?
Answer: A
X is sister of Y. Y is brother of Z (so Z is also sibling of X). Z is father of W. Therefore, X is aunt of W.
Q.10Medium
If MOUNTAIN = 13-15-21-14-20-1-9-14, how many letters in the code have odd position values?
Answer: C
Odd values: 13(M), 21(U), 15(O), 1(A), 9(I) = 5 letters with odd position values.
Q.11Medium
Five people P, Q, R, S, T are sitting in a row. R is in the middle. P and Q are on the left of R. T is to the right of R. S is between Q and R. Who is sitting second from the left?
Answer: A
Order: P-Q-S-R-T. Second from left is Q.
Q.12Medium
Statements: All engineers are logical. Some logical people are creative. Conclusion: All engineers are creative. Is this valid?
Answer: B
Being logical doesn't guarantee being creative. Some logical people are creative doesn't extend to all engineers.
Q.13Medium
If PENCIL is coded as 16-5-14-3-9-12, how is ERASER coded?
Answer: A
Using position values: E=5, R=18, A=1, S=19, E=5, R=18.
Q.14Medium
Looking at a portrait, Anita said, 'His mother is my mother's only daughter.' Who is the person in the portrait?
Answer: B
Mother's only daughter is Anita herself. So Anita's mother is the person's grandmother, making the person her son.
Q.15Medium
Pointing to a man, a woman said, 'His mother is my father's wife.' How is the woman related to the man?
Answer: A
Father's wife is mother. Man's mother is woman's mother, so they are siblings.
Q.16Medium
All fruits are healthy. Some healthy foods are expensive. Some expensive items are rare. Conclusion: All fruits are rare. Is this valid?
Answer: B
The logical chain doesn't establish that all fruits are rare. The statements do not guarantee this conclusion.
Q.17Medium
In a coded language, if BRIGHT = 2-18-9-7-8-20, and LIGHT = 12-9-7-8-20, what is the code for FIGHT?
Answer: A
Using alphabetic positions: F=6, I=9, G=7, H=8, T=20. Code: 6-9-7-8-20.
Q.18Medium
A man points to a woman and says, 'Her father's only son's wife is my mother.' How is the woman related to the man?
Answer: C
The woman's father's only son is the woman's brother. His wife is the man's mother. So the woman is the man's aunt.
Q.19Medium
Looking at a photograph, Raj said, 'He is the son of my father's only son.' Who is he in relation to Raj?
Answer: A
Raj's father's only son is Raj himself. So the person in the photograph is Raj's son.
Q.20Medium
All doctors are professionals. Some professionals are wealthy. No wealthy person is unhealthy. Based on the above, which statement is definitely true?
Answer: B
Doctors are professionals. Some professionals are wealthy. Therefore, some doctors could be wealthy. The statement 'Some doctors are wealthy' is the logical conclusion.
