OSSSC (Odisha Subordinate Staff Selection Commission) conducts recruitment exams for various posts including Revenue Inspector (RI), Assistant Revenue Inspector (ARI), Amin, Statistical Field Surveyor (SFS), and ICDS Supervisor. One of the key sections in these exams is Reasoning Ability, which assesses candidates’ logical and analytical thinking skills. To help aspirants prepare effectively, here are the top 30 Reasoning MCQs for OSSSC recruitment exams.
Top 30 Reasoning MCQs for OSSSC RI,ARI, Amin, SFS, ICDS Supervisor
Q1: If ‘PEACE’ is coded as ‘RGCEG’, how is ‘WAR’ coded?
(a) YCT
(b) YDU
(c) XBS
(d) VCU
Ans: (a) YCT
Explanation: Each letter is shifted by 2 positions forward in the alphabet.
Q2: In a certain code, ‘LANGUAGE’ is written as ‘OEQKXEJI’. How is ‘COUNTRY’ written in that code?
(a) FSXRWVB
(b) GQXWNUZ
(c) FQWVMTZ
(d) EQVULSY
Ans: (a) FSXRWVB
Explanation: Each letter is shifted by 3 & 4 positions forward in the alphabet.
Q3: What is the next term in the series 2, 6, 12, 20, 30, ?
(a) 42
(b) 48
(c) 40
(d) 36
Ans: (a) 42
Explanation: The pattern is
𝑛^2+𝑛 where 𝑛 starts from 1. (1+1)=2, (4+2)=6, (9+3)=12, and so on.
Q4: Find the next term in the series: 3, 9, 27, 81, ?
(a) 243
(b) 162
(c) 108
(d) 324
Ans: (a) 243
Explanation: Each term is multiplied by 3.
Q5: Pen is to Write as Knife is to ?
(a) Cut
(b) Eat
(c) Slice
(d) Sharp
Ans: (a) Cut
Explanation: Pen is used for writing, Knife is used for cutting.
Q6: Doctor is to Patient as Teacher is to ?
(a) School
(b) Student
(c) Education
(d) Lecture
Ans: (b) Student
Explanation: Doctor treats patients, teacher educates students.
Q7: Pointing to a photograph, a man said, “I have no brother or sister, but that man’s father is my father’s son.” Whose photograph was it?
(a) His son
(b) His father
(c) His cousin
(d) His nephew
Ans: (a) His son
Explanation: The man is referring to his own son.
Q8: Ram said, “This girl is the wife of the grandson of my mother.” How is Ram related to the girl?
(a) Grandfather
(b) Husband
(c) Father-in-law
(d) Father
Ans: (c) Father-in-law
Explanation: The girl is married to Ram’s son.
Q9: A man walks 5 km towards the north and then turns to the right. After walking 3 km, he turns to the right and walks 5 km. Then, he turns to the left and walks 5 km. How far is he from the starting point?
(a) 5 km
(b) 10 km
(c) 13 km
(d) 8 km
Ans: (d) 8 km
Explanation: The man is 8 km away from the starting point diagonally.
Q10: Rahul walks 30 meters towards the north, then turns right and walks 40 meters. He then turns right and walks 20 meters, and finally turns right and walks 40 meters. How far is he from the starting point?
(a) 10 meters
(b) 20 meters
(c) 30 meters
(d) 40 meters
Ans: (a) 10 meters
Explanation: Rahul is 10 meters north of the starting point.
Q11: Statements: All dogs are cats. Some cats are rats.
Conclusions: (i) Some dogs are rats.
(ii) No dog is a rat.
(a) Only conclusion I follows
(b) Only conclusion II follows
(c) Either conclusion I or II follows
(d) Neither conclusion I nor II follows
Ans: (c) Either conclusion I or II follows
Explanation: Both conclusions are possible but not definite.
Q12: Statements: Some birds are animals. All animals are insects. Conclusions:
(i) Some birds are insects.
(ii) No bird is an insect.
(a) Only conclusion I follows
(b) Only conclusion II follows
(c) Either conclusion I or II follows
(d) Neither conclusion I nor II follows
Ans: (a) Only conclusion I follows
Explanation: Since all animals are insects, some birds being animals implies that some birds are insects.
Q13:Which of the following Venn diagrams best represents the relationship among “Animals, Lions, and Carnivores”?
Ans: (a) Two intersecting circles within a larger circle
Q14: Six friends are sitting in a circle and playing cards. Kenny is to the left of Danny. Joey is to the right of Johnny. Michael is between Danny and Johnny. Who is sitting to the immediate left of Michael?
(a) Joey
(b) Kenny
(c) Danny
(d) Johnny
Ans: (d) Johnny
Explanation: Using the given positions, you can determine the seating arrangement.
Q15: How many sisters does John have?
Statements:
(i) John’s father has three children.
(ii) John’s brother has two sisters.
(a) Statement I alone is sufficient
(b) Statement II alone is sufficient
(c) Both statements together are sufficient
(d) Both statements together are not sufficient
Ans: (b) Statement II alone is sufficient
Explanation: From statement II, we know John has 2 sisters.
Q16: Is X the grandmother of Y?
Statements:
(i) Y is the son of Z.
(ii) Z is the daughter of X.
(a) Statement I alone is sufficient
(b) Statement II alone is sufficient
(c) Both statements together are sufficient
(d) Both statements together are not sufficient
Ans: (c) Both statements together are sufficient
Explanation: Combining both statements, X is the grandmother of Y.
Q17: Arrange the following words in a logical sequence:
1. Seed
2. Tree
3. Plant
4. Fruit
5. Flower
(a) 1, 3, 2, 5, 4
(b) 1, 3, 5, 4, 2
(c) 1, 2, 3, 4, 5
(d) 1, 4, 5, 3, 2
Ans: (a) 1, 3, 2, 5, 4
Q18. In a family of six members A, B, C, D, E, and F, there are three males and three females. There are two married couples, and each family member likes a different fruit including Guava. E, who likes apples, is married to C, who likes oranges. D is the sister of E. B is the brother of F. A likes mangoes and is married to B. C and B are of the same gender. B does not like grapes. F likes bananas. C has only one son. Who likes grapes?
(a) D
(b) A
(c) B
(d) F
Ans: (a) D
Q19. How is D related to C?
(a) Sister-In-Law
(b) Sister
(c) Daughter
(d) Daughter-In-Law
Ans: (a) Sister-In-Law
Q20. Who likes Guavas?
(a) A
(b) B
(c) C
(d) D
Ans: (b) B
Q21. How is A related to C?
(a) Sister-In-Law
(b) Sister
(c) Daughter
(d) Daughter-In-Law
Ans: (d) Daughter-In-Law
Q22. How is B related to E?
(a) son-In-Law
(b) Son
(c) Uncle
(d) Daughter
Ans: (b) Son
Explanation: By process of elimination and logical deduction.
A-Mango
B-Guava
C-Orange
D-Grapes
E-Apples
F-Banana
Q23: A, B, C, D, and E are sitting in a row. C is between A and E. B is to the immediate left of A. Who is sitting at the extreme right end?
(a) A
(b) B
(c) D
(d) E
Ans: (d) E
Explanation: The arrangement is B, A, C, D, E.
Q24: Six friends are sitting in a circle. Amy is between Ben and John. Dan is between John and Mike. Mike is to the immediate left of John. Who is to the immediate right of Dan?
(a) John
(b) Mike
(c) Amy
(d) Ben
Ans: (a) John
Explanation: The arrangement in the circle determines that John is to the immediate right of Dan.
Q25: What will be the mirror image of the word ‘LEFT’ if held vertically in front of a mirror?
(a) TFEL
(b) LTFE
(c) EFLT
(d) FLET
Ans: (a) TFEL
Explanation: The mirror image reverses the order of letters.
Q26: If the input is ‘pink blue yellow green’, what will be the third step of the output if the steps follow the pattern of arranging the words in alphabetical order?
(a) blue green pink yellow
(b) blue green yellow pink
(c) blue pink green yellow
(d) green blue yellow pink
Ans: (a) blue green pink yellow
Explanation: Step 3 arranges three words alphabetically while the fourth word remains.
Q27: Find the odd one out:
(a) Circle
(b) Square
(c) Rectangle
(d) Triangle
Ans: (a) Circle
Explanation: All others are polygons, Circle is not.
Q28: Identify the figure that does not belong to the group:
(a)
(b)
(c)
(d)
Ans: (a)
Explanation: The figure has a different number of sides or pattern compared to others.
Q29: If a dice has faces numbered from 1 to 6, which number will be opposite to 3?
(a) 4
(b) 5
(c) 6
(d) 2
Ans: (b) 5
Explanation: Opposite faces of a standard die always sum to 7.
Q30: A cube has been painted on all six faces and then cut into smaller cubes of equal size. If the side of the original cube is divided into 3 equal parts, how many smaller cubes will have exactly one face painted?
(a) 6
(b) 8
(c) 12
(d) 18
Ans: (c) 12
Explanation: The cubes on the edges but not on corners of each face will have one face painted.
