Logical Reasoning & Puzzles Practice Questions & Worked Solutions

Q1 Easy • TCS, HCL

In a certain code language, "ROSE" is written as "ILHV". How will "HAND" be written in that same code?

A SZM W

B SZMW

C TZNW

D RWMZ

Q2 Easy • Infosys, TCS Ninja

Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

A 7

B 10

C 12

D 13

Q3 Easy • TCS, Cognizant

Pointing to a photograph of a boy, Suresh said, 'He is the son of the only son of my mother.' How is Suresh related to that boy?

A Brother

B Uncle

C Cousin

D Father

Q4 Medium • Accenture, Wipro

Statements: (1) All mangoes are golden. (2) No golden things are cheap. Conclusions: (I) All mangoes are cheap. (II) Golden-colored mangoes are not cheap.

A Only conclusion I follows

B Only conclusion II follows

C Both I and II follow

D Neither I nor II follows

Q5 Hard • TCS Digital, Infosys DSE

If in a certain code language, 'COMPUTER' is written as 'RFUVQNPC', how will 'MEDICINE' be written in that code?

A MFEDJJOE

B EOJDEJFM

C EOJDJEFM

D MFEJDJOE

Q6 Easy • Cognizant, Capgemini

A man walks 5 km toward South and then turns to the right. After walking 3 km he turns to the left and walks 5 km. Now in which direction is he from the starting place?

A West

B South

C South-West

D North-East

Q7 Hard • Infosys, Wipro

At what time between 4 and 5 o'clock will the hands of a clock be at right angle?

A 4:05 5/11

B 4:38 2/11

C Both A and B

D 4:15

Q8 Medium • TCS, Accenture

Five girls are sitting on a bench to be photographed. Seema is to the left of Rani and to the right of Bindu. Mary is to the right of Rani. Reeta is between Rani and Mary. Who is sitting immediately to the right of Reeta?

A Bindu

B Rani

C Mary

D Seema

Q9 Easy • Wipro, Cognizant

Find the odd man out in the series: 3, 5, 11, 14, 17, 21

A 21

B 17

C 14

D 3

Q10 Medium • Wipro, TCS Ninja

If 'A + B' means 'A is the father of B', 'A - B' means 'A is the sister of B', and 'A * B' means 'A is the brother of B', which expression demonstrates that P is the paternal aunt of Q?

A P - R + Q

B P + R - Q

C P * R - Q

D R - P + Q

Q11 Easy • Infosys, Capegemini

In a certain code, 'LIGHT' is coded as 'MJHIU'. How is 'SPARK' coded in that same language?

A TQBSL

B TQBTL

C TQARL

D SQBSL

Q12 Medium • Deloitte, KPMG

Statement: 'The municipal corporation decided to clean all major storm water drains before the monsoon season starts.' Assumptions: I. Many drains are clogged with silt. II. Cleaning drains reduces urban flooding risk.

A Only assumption I is implicit

B Only assumption II is implicit

C Neither I nor II is implicit

D Both I and II are implicit

Q13 Easy • TCS, HCLTech

Find the next number in the arithmetic-geometric progression series: 2, 6, 12, 20, 30, 42, ?

A 52

B 54

C 56

D 60

Q14 Easy

A sequence starts at 5, and each next term equals twice the previous term plus 1. What is its fourth term?

A 47

B 46

C 23

D 48

Q15 Easy

In a code, each letter is shifted two places forward alphabetically, wrapping after Z. How is ZEBRA coded?

A BGDTC

B BGDTB

C XCDPY

D AGDTC

Q16 Easy

A person walks 4 km north and then 3 km east. What is the straight-line distance from the starting point?

A 1 km

B 12 km

C 5 km

D 7 km

Q17 Medium

Five runners finish without ties. A finishes ahead of B but behind C. D finishes behind B. E finishes ahead of C. Who finishes third?

A B

B A

C D

D C

Q18 Medium

Four tasks P, Q, R, and S are performed once each. P must precede R, Q must follow R, and S must precede P. In what order must the tasks be performed?

A S, P, R, Q

B P, S, R, Q

C S, R, P, Q

D P, Q, R, S

Q19 Easy

A machine changes an integer x to 3x - 2. If its output is 25, what was its input?

A 9

B 8

C 7

D 11

Q20 Easy

An arrow initially points west. It turns 90 degrees clockwise, then 180 degrees counterclockwise. Which direction does it point?

A South

B North

C East

D West

Logical Reasoning & Puzzles Practice Questions (20)