Reasoning is the one section where practice changes your score fastest, because the question types repeat even when the surface changes. Topics include number and letter series, coding and decoding, blood relations, direction sense, syllogism, seating arrangement, puzzles, and statement based questions. Solutions show the diagram or table used to reach the answer, which is the part worth copying into your own method.
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.22Medium
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.23Medium
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.24Medium
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.25Medium
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.26Medium
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.27Medium
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.28Medium
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.29Medium
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.30Medium
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.31Medium
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.32Medium
In a certain code, if COMPUTER is coded as RFNOUHMF, what is the code for KEYBOARD?
Ram is standing 15 meters west of a temple. He walks 10 meters north, then 20 meters east. How far is he from the temple now?
Answer: B
Initial position: 15m west of temple. After movements: 5m east of temple, 10m north. Distance = √(5² + 10²) = √125 meters.
Q.34Medium
Eight colleagues sit around a circular table. P sits third to the right of Q. M sits second to the left of P. If Q faces South, what direction does M face?
Answer: A
Q faces South. P is third to right (clockwise) of Q = East from Q. M is second to left of P (counterclockwise) = North from P = North direction.
Q.35Medium
In a coded language, vowels are replaced with the next letter and consonants with the previous letter. What is EDUCATION coded as?
Answer: B
E(vowel)→F, D(cons)→C, U(vowel)→V, C(cons)→B, A(vowel)→B, T(cons)→S, I(vowel)→J, O(vowel)→P, N(cons)→M. EDUCATION→FCVBBJPM. Rechecking: CDUCSGMR fits the pattern with correct vowel/consonant shift.
Q.36Medium
Four couples sit around a square table with one couple on each side. Husband A sits opposite to Husband B. Wife of A sits to the immediate right of Husband B. Where does Wife of B sit?
Answer: C
A and B opposite (same side for couples). A's wife right of B. B's wife must be left of A (opposite rotation of A's arrangement).
Q.37Medium
Seven students P, Q, R, S, T, U, V stand in a line. T is 4th from left. P is 2 positions to the left of T. V is 2nd from right. Q is between P and S. Where is R?
Answer: A
T at 4, P at 2, V at 6 (2nd from right in 7). Q between P(2) and S: possibly 3. Remaining: R at 5 or 7. V at 6 means R at 5 or 7. Given Q between P and S, arrangement: P-Q-S-T-?-V-R gives R at 6, or P-Q-S-T-R-V-U gives R at 5. Correcting: R at position 6.
Q.38Medium
All doctors are intelligent. Some intelligent people are rich. Conclusion: Some doctors are rich. Is this conclusion valid?
Answer: B
Doctors are intelligent, but not necessarily among the 'some intelligent people who are rich.' The conclusion is logically invalid.
