Reasoning Practice Questions
These are PYQ-style reasoning questions.
Series
Q1
Find the next number:
3, 6, 12, 24, 48, ?
A. 72
B. 84
C. 96
D. 108
Answer: C
Pattern: ×2.
Q2
Find the next number:
5, 9, 17, 33, 65, ?
A. 97
B. 120
C. 129
D. 135
Answer: C
Pattern: ×2 -1? Actually 5→9 (+4), 9→17 (+8), 17→33 (+16), 33→65 (+32), next +64 = 129.
Q3
Find the missing letter:
B, D, G, K, P, ?
A. T
B. U
C. V
D. W
Answer: C
Positions: 2,4,7,11,16. Differences: +2,+3,+4,+5, next +6 = 22 = V.
Coding-decoding
Q4
If CAT is coded as DBU, then DOG is coded as:
A. EPH
B. ENH
C. FPH
D. EOG
Answer: A
Pattern: each letter +1.
Q5
If MANGO is written as NAMGO, then APPLE is written as:
A. PAPLE
B. APPEL
C. PPALE
D. LAPPE
Answer: A
Pattern: first two letters swapped.
Blood relation
Q6
A is the mother of B. B is the brother of C. C is the daughter of D. How is D related to A?
A. Husband
B. Brother
C. Father
D. Cannot be determined
Answer: D
Explanation: D is parent of C, but gender and marital relation to A are not directly confirmed.
Q7
P is the father of Q. Q is the sister of R. R is the son of S. How is S related to P?
A. Wife
B. Husband
C. Spouse
D. Cannot be determined
Answer: C
S is parent of R and Q; P is father of Q. Most likely spouse, but gender of S not known, so “spouse” is safest.
Direction
Q8
A person walks 5 km north, then 3 km east, then 5 km south. How far is he from starting point?
A. 3 km
B. 5 km
C. 8 km
D. 13 km
Answer: A
Syllogism
Q9
Statements:
- All dogs are animals.
- Some animals are cats.
Conclusion:
- Some dogs are cats.
- All cats are animals.
A. Only 1 follows
B. Only 2 follows
C. Both follow
D. Neither follows
Answer: D
Neither is guaranteed.
Statement-conclusion
Q10
Statement: Wind is an inexhaustible energy source and aerogenerators can convert it into electricity. There is vast potential for wind energy.
Conclusions:
- Wind energy is a useful alternative energy area.
- More exploration of wind energy can help energy needs.
A. Only 1 follows
B. Only 2 follows
C. Both follow
D. Neither follows
Answer: C
Data sufficiency
Q11
Question: Is x greater than 10?
Statement I: x > 8
Statement II: x is even
A. I alone sufficient
B. II alone sufficient
C. Both sufficient
D. Not sufficient
Answer: D
Even and greater than 8 could be 10 or 12.