10 logical reasoning questions matching the Infosys Specialist Programmer pattern. Series, syllogisms, blood relations, directions.
This Infosys drill targets logical reasoning with a 20-minute clock, compact answer choices, and explanations that help you review the missed concept after the attempt.
First solve the questions without opening explanations. Mark doubtful items, finish the full set, then compare your score with the answer notes. That gives a clearer signal than checking every solution mid-test.
Treat the result as a topic map. If the weak area is speed, repeat the same set after one day. If the weak area is concept clarity, move to the matching PapersAdda guide and come back for a timed retest.
Attempt the timed test first. Then open each answer to compare the method, not only the option.
Answer: 42
Differences: 4, 6, 8, 10, 12 → next term = 30 + 12 = 42.
Answer: Cannot be determined
We only know Roses ⊆ Flowers and some Flowers are Red. Roses may or may not be the Red subset.
Answer: Father-in-law
B's father = A's husband. C is father of A's husband = A's father-in-law.
Answer: MNQSG
Each letter shifts by −1: S→R, O→N, U→T, T→S, H→G. Apply to NORTH: M, N, Q, S, G.
Answer: 20m
North and south cancel. Net = 20m east.
Answer: 50
L=12, I=9, O=15, N=14. Sum = 50.
Answer: 625
125=5³, 216=6³, 343=7³, 512=8³, 625=5⁴. 625 is not a perfect cube.
Answer: 19
Total = 7 + 13 − 1 = 19.
Answer: ST
Gaps between first letters: 2, 3, 4, 5 → M+5=R, then +6=S? Check: A→D(+3),D→H(+4),H→M(+5),M→S(+6). Next pair: ST.
Answer: Some erasers are pens
All pens ⊆ pencils ⊆ erasers. So all pens are erasers, which implies some erasers are pens.
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