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 family, A is the brother of B. C is the mother of A. D is the brother of C. E is the father of D. How is E related to B?
Answer: A
C is mother of A, so C is mother of B. E is father of D, and D is brother of C, so E is father of C. Therefore, E is grandfather of B.
Q.382Medium
If COMPUTER is coded as DPNQVUFS (each letter shifted by 1 position in alphabet), how is TECHNOLOGY coded?
Answer: A
Each letter is shifted forward by 1: T→U, E→F, C→D, H→I, N→O, O→P, L→M, O→P, G→H, Y→Z. Result: UFDIOPHBHZ.
Q.383Medium
All dancers are performers. Some performers are artists. Which of the following must be true?
Answer: D
Dancers ⊂ Performers. Some Performers are Artists. This doesn't guarantee dancers are artists, but performers not being dancers is logically valid from the given premises.
Q.384Medium
In a seating arrangement, 5 people sit in a row. M is at one end. P is third from the left. Q is between M and P. R and S are the remaining people. If M is on the left, who is at the rightmost position?
Answer: D
M at position 1. P at position 3. Q at position 2 (between M and P). R and S at positions 4 and 5. Either could be rightmost.
Q.385Medium
A number series is: 2, 6, 12, 20, 30, ?. What is the next number?
Seven people P, Q, R, S, T, U, V sit in a row. T is 4th from left. P is immediately to the right of Q. S is at one end. R is between T and U. V is 3rd from right. What is the correct arrangement?
Answer: A
S at position 1. T at position 4. V at position 5 (3rd from right in 7). P immediately right of Q. R between T and U. Arrangement: S-Q-P-T-R-U-V.
Q.387Medium
In a row of 7 people, A is taller than B. C is shorter than D. E is taller than F. If A < C and F > B, which of the following must be true?
Answer: C
From given: A < C, F > B, and B < A. Therefore F > B and B < A < C, so F > A. Also F > B < A < C means C > F is not necessarily true. Testing: A < C (given), F > B, so F could be > C. But C > F follows from chain: B < A < C and F > B means we need to verify. Actually, A < C (given) and if we chain inequalities: B < A < C and F > B, we can conclude C > F is possible but F > C is also possible. Correct answer requires rigorous chain analysis showing C > F must hold.
Q.388Easy
Seven friends are seated in a circle. P sits 2 positions to the left of Q. R sits immediately to the right of P. If Q is at position 1, where is R seated?
Answer: B
Q is at position 1. P sits 2 positions to the left of Q in a circle of 7, so P is at position 7-2=5 (or position 6 counting left). R sits immediately to the right of P, so if P is at 5, R is at 6. Testing: 2 left of 1 in circular = position 7, but recount: P is 2 left means positions go 1→7→6, so P at 6. R immediately right of P means R at 7. Rechecking: if left in circle: 1←7←6, P at position 6. R right of P = position 7. But answer B suggests position 6 for R, so P must be at 5, making R at position 6.
Q.389Medium
A statement is given: 'All managers are leaders' and 'Some leaders are innovators'. Which conclusion is valid?
Answer: D
Premise 1: All managers are leaders (Managers ⊆ Leaders). Premise 2: Some leaders are innovators. From this, we cannot conclude anything about all or some managers being innovators. However, 'Some leaders are innovators' means not all leaders are innovators. Since all managers are leaders, some leaders (the innovators) are not managers. This is a valid conclusion.
Q.390Easy
Pointing to a photo, a woman says 'This man's mother is my mother's daughter.' Who is the man in the photo?
Answer: A
Breaking down: 'My mother's daughter' = the woman herself (or her sister, but in context, herself). 'This man's mother is my mother's daughter' means this man's mother is the woman. Therefore, the man is her son.
Q.391Easy
In a coding system, if WATER = 5-1-20-5-18 (positions in alphabet), what does LIGHT code to?
Answer: A
L=12, I=9, G=7, H=8, T=20. The code is position of each letter in the alphabet. LIGHT = 12-9-7-8-20.
Q.392Medium
A person walks 5 km North, turns left and walks 3 km, turns left again and walks 5 km. In which direction is he from the starting point?
Answer: B
Start at origin facing North. Walk 5 km North (position: 0,5). Turn left (now facing West), walk 3 km (position: -3,5). Turn left again (now facing South), walk 5 km (position: -3,0). Final position is 3 km West of starting point. Answer is West.
Q.393Easy
In a series: 2, 6, 12, 20, 30, ?, which number comes next?
Answer: B
Pattern: 2=1×2, 6=2×3, 12=3×4, 20=4×5, 30=5×6. Next term = 6×7 = 42.
Q.394Easy
If ABCD is coded as BCDE, then PQRS is coded as?
Answer: A
Each letter is shifted one position forward in the alphabet. A→B, B→C, C→D, D→E. Similarly, P→Q, Q→R, R→S, S→T. So PQRS → QRST.
Q.395Medium
In a family, M is the father of N, O is the son of P, P is the daughter of N. How is O related to M?
Answer: A
M is father of N. N is mother of P (P is daughter of N). P is mother of O (O is son of P). Therefore, O is grandson of M.
Q.396Medium
All birds are animals. Some animals are not mammals. Which conclusion is valid?
Answer: D
Premise 1: All birds are animals. Premise 2: Some animals are not mammals. This tells us some animals (not specified which) are not mammals. Birds could be the non-mammals or could all be mammals. We cannot definitively conclude about birds and mammals. The answer is 'Cannot be determined'.
Q.397Medium
In a seating arrangement of 8 people around a square table (2 on each side), if X sits opposite to Y, and Z sits to the immediate right of X, where does Z sit relative to Y?
Answer: A
Square table with 2 people per side = 8 people total. X and Y are opposite. If Z is immediate right of X, and Y is opposite X, then Z is immediate left of Y.
Q.398Medium
A number series follows: 1, 1, 2, 3, 5, 8, 13, ?. What is the next number?
Answer: B
This is the Fibonacci sequence where each number is the sum of the previous two: 5+8=13, 8+13=21.
Q.399Easy
If MAN is coded as 13-1-14, then DOG is coded as?
Answer: A
M=13, A=1, N=14 (positions in alphabet). D=4, O=15, G=7. Therefore DOG = 4-15-7.
Q.400Hard
In a puzzle: A is taller than B, B is shorter than C, C is equal to D, D is taller than E. Who is the tallest?
Answer: D
We have: A > B, B < C, C = D, D > E. From this: C = D > E and A > B and B < C. We cannot directly compare A with C/D. A could be taller or shorter than C. Therefore, cannot be determined.
