66. In the series 3, 11, 23, 39, 59, ____ The next term will be
(A) 63
(B) 73
(C) 83
(D) 93
Answer:
(C) 83
Explanation:
The differences between consecutive terms are increasing by 4: (11-3=8), (23-11=12), (39-23=16), (59-39=20). The next difference must be 24, so 59+24=83.
67. A is sister of B. F is daughter of G. C is mother of B. D is father of C. E is mother of D. A is related to D as
(A) Grand daughter
(B) Daughter
(C) Daughter-in-law
(D) Sister
Answer:
(A) Grand daughter
Explanation:
Since A is the sister of B, and C is the mother of B, C is also the mother of A. Since D is the father of C, D is the maternal grandfather of A, making A his granddaughter.
68. In the series AB, EDC, FGHI, ….?…., OPQRST, the missing term is
(A) JKLMN
(B) JMKNL
(C) NMLKJ
(D) NMKLJ
Answer:
(C) NMLKJ
Explanation:
The string of letters is continuous, but chunks are reversed in alternating lengths (2 forward, 3 reversed, 4 forward, 5 reversed). The next 5 letters are J,K,L,M,N, written backwards as NMLKJ.
69. Pointing to a man in the photograph a woman said, “He is the son of the only son of my grandfather.” How the man in the photograph is related to that woman?
(A) Grandfather
(B) Father
(C) Brother
(D) Insufficient data
Answer:
(C) Brother
Explanation:
The “only son of my grandfather” is the woman’s father. The “son” of her father is therefore her brother.
70. What will be the missing letters in the series EQ, FS, HW, KA, __, TL?
(A) AL
(B) OF
(C) HP
(D) None of the above
Answer:
(B) OF
Explanation:
The first letters follow a pattern of +1, +2, +3, +4 (E->F->H->K->O). The second letters follow +2, +4, +4, +5 pattern or similar wrap-around logic, yielding OF.
