Prepare for Odisha Police Constable exam with the top 15 logical reasoning MCQs, covering essential topics such as series, clock, nonverbal reasoning, coding-decoding, and blood relations. Designed to challenge your analytical skills and improve reasoning abilities for success in the exam.
Top 15 Logical Reasoning MCQs For Odisha Police Constable
Q1. Find the odd one out from the given set of numbers.
121, 385, 462, 561, 678, 792
a) 121
b) 462
c) 678
d) 792
S1. Ans: c
Sol: Here, the middle digit of the number is the sum of other two digits of that number.
i.e.
1 + 1 = 2 ⇒ 121
3 + 5 = 8 ⇒ 385
4 + 2 = 6 ⇒ 462
5 + 1 = 6 ⇒ 561
7 + 2 = 9 ⇒ 792
But the number 678 in the given data does not follow this pattern (i.e. middle digit is not the sum of other two digits).
Hence, 678 is the answer.
Q2.Find the odd one out from the given set of numbers.
5, 7, 11, 17, 19, 21
a) 7
b) 11
c) 17
d) 21
S2. Ans: d
Sol: Here, the numbers 5, 7, 11, 17 and 19 in the given data are divisible only by ‘1’ or by the number itself (i.e. are prime numbers). Whereas the number 21 in the given data is also divisible by ‘3’ (21 ÷ 3 = 7) other than ‘1’ and ‘21’ (i.e. not a prime number).
Hence, 21 is the answer.
Q3. Find the odd one out from the given data.
EFG, BCE, JKL, ABC, NPO
a) NPO
b) JKL
c) BCE
d) ABC
S3. Ans: b
Sol: Here, the group of letters EFG, BCE, ABC and NPO contain vowels in it (i.e. a, e, i, o and u).
i.e. EFG, BCE, ABC and NPO
Whereas JKL in the given data, does not contain any vowel in it.
Hence, JKL is the answer.
Q4. Find the odd one out from the given data.
RED, BLACK, GREY, ORANGE, VIOLET
a) BLACK
b) RED
c) ORANGE
d) VIOLET
S4. Ans: b
Sol: There are 3 primary colors which are RED, YELLOW and BLUE.
In the given data, RED is the only primary color given. Whereas BLACK, ORANGE, GREY and VIOLET in the given data are not considered as primary colors.
Hence, RED is the answer.
Q5. In a certain code “HYDROGEN” is written as “hYdrOGEn”. How is “LITHIUM” written in that code?
a) lIthIUM
b) LiThIuM
c) liTHiUm
d) LItHIUm
S5. Ans: a
Sol: Here, according to the positions of the alphabets, odd position alphabets are written in capital letters whereas, even position alphabets are written in small letters.
Hence, the answer is lIthIUM.
Q6. A cowherd had 23 cows. All but seven died. How many will he have left?
a) 7
b) 11
c) 8
d) 9
S6. Ans: a
Sol: Here, it is given that all cows died except 7 cows i.e. out of 23, 16 cows died.
Hence, the answer is 7.
Q7. In a certain code “AERONAUTICS” is written as “ARENOUAITSC”. How can “ASTRONOMY” be written in that code?
a) ATSORONYM
b) ATSNOORMY
c) ANSTOMROY
d) ANRSOTOYM
S7. Ans: a
Sol Here, after first letter of the word the remaining letters are swapped with its adjacent letter.
Therefore for ASTRONOMY the code is ATSORONYM.
Hence, the answer is ATSORONYM.
Q8. In a certain code “LETTER” is written as “40”. Then how can “MESSAGES” be written in that code?
a) 44
b) 31
c) 57
d) 29
S8. Ans: a
Sol: Here, the positional values of alphabets are added and then divided by 2.
i.e. LETTER→12 + 5 + 20 + 20 + 5 + 18 = 80÷2 = 40.
Similarly, for MESSAGES→ 13 + 5 + 19 + 19 + 1 + 7 + 5 + 19 = 88÷2 = 44.
Hence, the answer is 44.
Q9. Chew : Mouth :: Walk : ?
a) Legs
b) Arms
c) Eyes
d) Ears
S9. Ans: a
Sol: From analyzing the left side, we can conclude that the process of chewing is done by Mouth.
By using the same logic, we can conclude that Walking is done by Legs.
Hence, Legs is the answer.
Q10. Light : Sun :: Heat : ?
a) Electricity
b) Fire
c) Water
d) Alcohol
S10. Ans: b
Sol: From analyzing the left side, we can conclude that sun is the source of light.
By using the same logic, we can conclude that fire is the source of heat.
Hence, fire is the answer.
Q11. India : Delhi :: Rajasthan : ?
a) Jaipur
b) Rampur
c) Pushkar
d) Goa
S11. Ans: a
Sol: From analyzing the left side, we can conclude that Delhi is the capital of India.
By using the same logic, we can conclude that Jaipur is the capital of Rajasthan.
Hence, Jaipur is the answer.
Q12. R is the son of A’s father’s sister. S is son of D, who is the mother of G and grandmother of A. H is the father of T and grandfather of R. D is wife of H. How is R related to D?
a) Nephew
b) Son
c) Grandson
d) Insufficient Data
S12. Ans: c
Sol: Since, H is the grandfather of R and D is the wife of H, it is clear that D is the grandmother of R.
Hence the answer is Grandson.
Q13. X and Y are the children of Z. If Z is the father of X but Y is not the son of Z, then what is the relationship between Y and Z?
a) Sister and Brother
b) Daughter and Father
c) Niece and Uncle
d) Insufficient data
S13. Ans: b
Sol: Here, it is given that X and Y both are children of Z and since Y is not the son of Z, then Y must be the daughter of Z.
Hence the answer is Daughter and Father.
Q14. Complete the series 34, 45, 57, ?, 54, 43.
a) 88
b) 92
c) 75
d) 63
S14. Ans: c
Sol: Here, in the series after first three numbers, remaining three numbers are reversed number of previous numbers.
Hence, the answer is 75.
Q15. Complete the following series 3, 8, 15, 24, …?
a) 38
b) 35
c) 28
d) 42
S15. Ans: b
Sol: Here, the pattern followed is :-
3×1=3, 4×2=8, 5×3=15, 6×4=24. Similarly 7×5=35.
Hence, the answer is 35.
