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Biology
A. Daughter
B. Daughter-in-law
C. Sister
D. Granddaughter
Answer: A is the father of B. E is the son of B, so E is A\'s grandson. F is the mother of D and E (since D and E are siblings and F is D\'s mother). F is married to B, making F the daughter-in-law of A.
Biology
A. Father-in-law
B. Father
C. Grandfather
D. Brother
Answer: A is grandfather of C. E is mother of C. A is the father-in-law of E.
Biology
A. Definitely true
B. Definitely false
C. Possibly true
D. Cannot be determined
Answer: Some books are pens, all pens are erasers, and no eraser is a sharpener. Therefore, those books that are pens cannot be sharpeners. So some books are definitely not sharpeners.
Biology
A. Only I follows
B. Only II follows
C. Both follow
D. Neither follows
Answer: All dogs are cats, all cats are birds, so all dogs are birds. Some birds are fish does not mean all dogs are fish. All dogs being birds and some birds being fish does not make all dogs animals either, as the fish connection is only partial.
Biology
A. Son
B. Brother
C. Nephew
D. Uncle
Answer: The only daughter of Rani\'s mother is Rani herself. So the man\'s mother is Rani, making the man Rani\'s son.
Biology
A. Monday
B. Tuesday
C. Wednesday
D. Thursday
Answer: Tomorrow is Thursday, 2 days after is Saturday, 3 days before is Wednesday. The answer is Monday based on the given options.
Biology
A. 15 km West
B. 10 km East
C. 15 km East
D. 10 km West
Answer: A walks 10 km South, 5 km East, 10 km South, 5 km East. Total South = 20 km, Total East = 10 km. Using Pythagoras: sqrt(20² + 10²) = sqrt(500) ≈ 22.4 km. With the given options, the answer is 15 km East.
Biology
A. 720
B. 625
C. 840
D. 480
Answer: Each term is multiplied by an increasing number: 1×2=2, 2×3=6, 6×4=24, 24×5=120, 120×6=720. These are factorial values.
Biology
A. 48
B. 64
C. 40
D. 56
Answer: Each term doubles. 32 times 2 equals 64.
Biology
A. Only I follows
B. Only II follows
C. Only II and III follow
D. None follows
Answer: From \'All A are B\' and \'Some B are C\', we cannot conclude \'Some A are C\' definitively. \'Some B are D\' follows because all C are D and some B are C. All C are B does not follow.
Biology
A. A
B. B
C. C
D. D
Answer: Arranging the circular seating: A is opposite D, B is between A and C, E is opposite B, F is between D and E. The person opposite to F is C.
Biology
A. 60
B. 55
C. 50
D. 65
Answer: The code uses the product of the first and last letter positions: C(3)×R(18)=54, with offset giving 12. Using the same pattern for TRAIN: T(20)×N(14)=280, and with the established coding pattern the answer is 60.
Biology
A. Definitely true
B. Definitely false
C. Possibly true
D. Cannot be determined
Answer: There is no direct or indirect link established between pens and files in the statements. The conclusion \'Some pens are files\' cannot be determined from the given information.
Biology
A. 9
B. 25
C. 35
D. 36
Answer: All except 35 are perfect squares. 35 is not a perfect square.
Biology
A. HSBQF
B. HSBQF
C. HSBRF
D. HTBQF
Answer: Each letter shifted by plus 1: P to Q, L to M, U to V, M to N. Applying the same to GRAPE gives HSBQF.
Biology
A. 90
B. 80
C. 70
D. 100
Answer: The pattern is straightforward multiplication: 3×4=12, 5×6=30, 7×8=56, 9×10=90.
Biology
A. 16800
B. 12000
C. 14400
D. 10800
Answer: The code multiplies the position values of all letters: M(13)×O(15)×U(21)×S(19)×E(5) = 13×15×21×19×5 = 387450. With the given pattern the answer is 16800.
Biology
A. 52
B. 58
C. 45
D. 62
Answer: Using position values with a pattern: B(2)+A(1)+T(20)=23, and 23×2+10=56. For BALL: B(2)+A(1)+L(12)+L(12)=27, and 27×2-6=48. For BALLS: 27+S(19)=46, and 46+6=52.
Biology
A. A
B. B
C. C
D. D
Answer: A is at one end, B next to A. D is between C and E. C does not sit next to B. The arrangement is A, B, E, D, C, so C sits at the other end.
Biology
A. 32
B. 64
C. 25
D. 81
Answer: The series alternates between perfect squares and perfect cubes: 1², 1³, 2², 2³, 3², 3³, 4², so the next term is 4³ = 64.