All birds are animals. Some animals are mammals. Therefore, ___
Answer: C
From given premises, we cannot definitively conclude about birds being mammals as 'some animals are mammals' doesn't specify which animals.
Q.2Medium
In a circular arrangement, 6 friends sit around a table. P sits opposite to Q. R is to the immediate right of P. S is between Q and R. T and U fill remaining seats. If T is to the left of Q, where is U sitting relative to P?
Answer: A
Circular arrangement: P at top, Q opposite (bottom). R right of P. S between Q and R. T left of Q. U must be immediate left of P.
Q.3Medium
If MATHEMATICS is coded as MHEATAMTICS, how many letters remain in their original positions?
Answer: C
M(1)-M, A(2)-H, T(3)-E, H(4)-A, E(5)-T, M(6)-A, A(7)-T, T(8)-I, I(9)-C, C(10)-S. Letters at positions 1,6,8,9 remain same after analysis. Count=4.
Q.4Medium
Seven boxes are arranged in a row. Box 4 is red. There are two blue boxes adjacent to each other somewhere. Green boxes are at odd positions. How many green boxes are there?
Answer: C
Odd positions = 1, 3, 5, 7 (4 positions). All green boxes are at odd positions. Therefore, 4 green boxes.
Q.5Medium
A is parent of B. B is parent of C. D is sibling of A. E is parent of D. How many generations apart are E and C?
Answer: C
E is parent of D. D is sibling of A. A is parent of B. B is parent of C. E→D→A→B→C = 3 generations apart.
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Q.6Medium
In a puzzle, each vowel is replaced by the next consonant and each consonant by the previous vowel. How would HELLO be coded?
In a logic puzzle, each animal belongs to exactly one group: mammals, birds, or reptiles. All dogs are mammals. Some pets are birds. Therefore, __
Answer: B
Dogs are mammals. Some pets are birds. This implies remaining pets could be mammals. Therefore, some pets are mammals (valid).
Q.10Medium
If going east is turning right from north, and going west is turning left from north, then going southwest is equivalent to turning ___ degrees from north (clockwise).
Answer: A
North=0°, East=90°, South=180°, West=270°. Southwest is between South and West = 225° (clockwise from North).
Q.11Medium
In a certain code, MATHEMATICS is written as 13-1-20-8-5-13-1-20-9-3-19. How is SCIENCE written?
Answer: A
The code uses position of letters in the alphabet. S=19, C=3, I=9, E=5, N=14, C=3, E=5. Therefore SCIENCE = 19-3-9-5-14-3-5.
Q.12Medium
If facing North-East, turning 135 degrees clockwise and then 45 degrees counter-clockwise, which direction are you facing?
Answer: B
Starting North-East (45°). Turn 135° clockwise: 45° + 135° = 180° (South). Turn 45° counter-clockwise: 180° - 45° = 135° (South-East), which simplifies to East direction.
Q.13Medium
2, 5, 12, 27, 58, __, 246
Answer: A
Pattern: Each term = 2 × previous term + 1. 2→5(2×2+1), 5→12(2×5+2), 12→27(2×12+3), 27→58(2×27+4), 58→121(2×58+5), 121→246(2×121+4).
Q.14Medium
All triangles are polygons. Some polygons are rectangles. Therefore:
Answer: D
The premises don't establish a direct relationship between triangles and rectangles. While all triangles are polygons and some polygons are rectangles, we cannot conclude about the intersection of triangles and rectangles.
Q.15Medium
Five boxes A, B, C, D, E are kept on a shelf. B is to the right of A. C is to the left of D. E is between C and D. D is to the right of B. What is the order?
Answer: A
B right of A: A-B. C left of D: C-D. E between C and D: C-E-D. D right of B: combining gives A-B-C-E-D.
Q.16Medium
No cats are dogs. All dogs are animals. Which statement is valid?
Answer: D
While all dogs are animals, cats could be or not be animals based on the premises. The first statement only tells us cats aren't dogs, not about their relationship with animals.
Q.17Medium
In a certain language, HELLO is coded as GDKKN. How is WORLD coded?
Answer: A
Each letter shifts back by 1 position: H→G, E→D, L→K, L→K, O→N. Applying same logic: W→V, O→N, R→Q, L→K, D→C = VNQKC.
Q.18Medium
All flowers are plants. Some plants are green. Therefore:
Answer: D
While flowers are plants, the second statement only says some plants are green. We cannot definitively conclude about flowers being green without more information.
Q.19Medium
All triangles are shapes. Some shapes are colored. No colored things are invisible. Which conclusion is valid?
Answer: C
Triangles are shapes. Some shapes are colored, but not all. Since some shapes might not be colored, some triangles might not be colored, thus not covered by 'no colored things are invisible'. Some triangles may not be invisible.
Q.20Medium
In a certain code, if COMPUTER is coded as RFNOUHMF, what is the code for KEYBOARD?
