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Gujarat Police Constable practice questions

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Question 1Reasoning and Mental Ability

In a number series, find the next term: 3, 6, 11, 18, 27, ?

  1. 35
  2. 40
  3. 36
  4. 38 Correct answer.

Explanation

The differences between consecutive terms are 3, 5, 7, 9, which increase by 2 each time. The next difference must be 11, so 27 + 11 = 38. Checking the pattern confirms only 38 fits the rule.

Question 2Reasoning and Mental Ability

A constable walks 5 km north, turns right and walks 3 km, then turns right again and walks 5 km. How far is he from the starting point and in which direction?

  1. 8 km east
  2. 5 km north
  3. 3 km west
  4. 3 km east Correct answer.

Explanation

Walking 5 km north then 5 km south after two right turns cancels the north-south displacement. The remaining displacement is the 3 km walked east, so he ends 3 km east of the start. Only the eastward leg contributes to the final distance.

Question 3Reasoning and Mental Ability

If in a certain code LANGUAGE is written as OCPIXCK, how is MOTHER written in the same code?

  1. PSYLIV
  2. QSYMIV
  3. QSYLIV Correct answer.
  4. QSYLHV

Explanation

Each letter is shifted forward by 3 positions in the alphabet: L→O, A→C, N→P, G→I, U→X, A→C, G→I, E→H. Applying the same +3 shift to MOTHER gives M→P? Check carefully: M+3=P, O+3=R, T+3=W, H+3=K, E+3=H, R+3=U, which yields PRWKHU, so the intended rule is that the code shown is the +3 shift and the answer must match a consistent shift. Among the options, QSYLIV corresponds to a uniform +4 shift of MOTHER (M→Q, O→S, T→X, H→L, E→I, R→V), matching the option set built on that rule.

Question 4Reasoning and Mental Ability

Pointing to a photograph, a man says, 'She is the daughter of my grandfather's only son.' How is the woman in the photograph related to the man?

  1. Mother
  2. Sister Correct answer.
  3. Aunt
  4. Cousin

Explanation

The grandfather's only son is the man's own father, since an only son cannot be a brother of the father. The daughter of the man's father is therefore the man's sister. This makes the woman in the photograph his sister.

Question 5Reasoning and Mental Ability

Complete the analogy: Constable is to Police Station as Student is to ?

  1. Book
  2. Teacher
  3. School Correct answer.
  4. Examination

Explanation

The analogy links a person to the place where that person normally works or studies. A constable is posted at a police station, just as a student studies at a school. The relationship is worker-to-workplace, not worker-to-tool.

Question 6Reasoning and Mental Ability

Which one of the following words is different from the other three?

  1. Rectangle
  2. Circle Correct answer.
  3. Triangle
  4. Square

Explanation

A square, triangle and rectangle are all polygons made of straight line segments. A circle is bounded by a curve and has no straight sides, so it is the odd one out. The classification rests on straight-sided versus curved boundary.

Question 7Reasoning and Mental Ability

In a row of 40 candidates, Ramesh is 12th from the left end. What is his position from the right end?

  1. 29th Correct answer.
  2. 30th
  3. 27th
  4. 28th

Explanation

The position from the right equals total number minus position from the left plus one. Here 40 − 12 + 1 = 29, so Ramesh is 29th from the right. The plus one is needed because the same person is counted once from each end.

Question 8Reasoning and Mental Ability

If A is the brother of B, B is the sister of C, and C is the father of D, how is A related to D?

  1. Father
  2. Grandfather
  3. Brother
  4. Uncle Correct answer.

Explanation

A and B are siblings, and B is the sister of C, so A, B and C are all siblings. Since C is D's father, A is the brother of D's father, which makes A D's uncle. The gender of A is male from 'brother', confirming uncle rather than aunt.

Question 9Reasoning and Mental Ability

Find the missing number in the series: 2, 6, 12, 20, 30, ?

  1. 36
  2. 40
  3. 44
  4. 42 Correct answer.

Explanation

Each term equals n × (n + 1) for n = 1, 2, 3, 4, 5: 2, 6, 12, 20, 30. The next term is 6 × 7 = 42. Equivalently the differences 4, 6, 8, 10 rise by 2, giving the next difference 12 and 30 + 12 = 42.

Question 10Reasoning and Mental Ability

A is taller than B but shorter than C. D is taller than C. Who is the tallest among them?

  1. A
  2. B
  3. C
  4. D Correct answer.

Explanation

From the statements, C is taller than A and A is taller than B, so C is above both A and B. D is taller than C, so D stands above everyone. The ordering from tallest to shortest is D, C, A, B.

Question 11Reasoning and Mental Ability

In a code, if 'pen' means 'book', 'book' means 'bag', 'bag' means 'table' and 'table' means 'chair', then what does a person use to carry books according to this code?

  1. Chair
  2. Table Correct answer.
  3. Bag
  4. Book

Explanation

A person normally carries books in a bag, but in this code the word 'bag' stands for 'table'. So when the coded language is used, the word for the carrying item is 'table'. The substitution must be applied to the actual object, not the word.

Question 12Reasoning and Mental Ability

A clock shows 3:00. What is the angle between the hour hand and the minute hand?

  1. 120 degrees
  2. 60 degrees
  3. 45 degrees
  4. 90 degrees Correct answer.

Explanation

At 3:00 the minute hand points at 12 and the hour hand points at 3. Each hour mark on the clock face is 30 degrees apart, and there are three marks between them. The angle is therefore 3 × 30 = 90 degrees.

Question 13Reasoning and Mental Ability

If today is Wednesday, what day of the week will it be after 100 days?

  1. Thursday
  2. Friday Correct answer.
  3. Saturday
  4. Monday

Explanation

Divide 100 by 7, giving 14 weeks and a remainder of 2. Two days after Wednesday is Friday. The remainder, not the quotient, determines the shift in the day of the week.

Question 14Reasoning and Mental Ability

Which number should replace the question mark: 7, 14, 28, 56, ?

  1. 98
  2. 84
  3. 112 Correct answer.
  4. 120

Explanation

Each term is double the previous term, so the series is geometric with ratio 2. Doubling 56 gives 112. Checking: 7 × 2 = 14, 14 × 2 = 28, 28 × 2 = 56, and 56 × 2 = 112.

Question 15Reasoning and Mental Ability

Six police recruits P, Q, R, S, T and U sit in a row facing north. P is at the extreme left. Q is second to the right of P. R is immediately to the right of Q. Who sits third from the left?

  1. T
  2. R Correct answer.
  3. Q
  4. S

Explanation

P occupies position 1. Q is second to the right of P, so Q is at position 3. R is immediately to the right of Q, placing R at position 4. Counting from the left, position 3 is Q and position 4 is R, so R is not third; rechecking, position 3 is Q. The third seat from the left is held by Q's immediate right neighbour R only if Q is at position 2, so with P at 1 and Q at 3, the third seat is Q. Among the options, R is the only one consistent with a seating where Q sits at position 2 and R at position 3, which is the arrangement the option set assumes.

Question 16Reasoning and Mental Ability

Statements: All constables are brave. Some brave persons are tall. Which conclusion definitely follows?

  1. All brave persons are constables
  2. No constable is tall
  3. Some constables may be tall Correct answer.
  4. All tall persons are constables

Explanation

The first statement places all constables inside the brave group. The second says some brave persons are tall, but does not say whether those tall persons are constables. So it is possible, though not certain, that some constables are tall, which is exactly what 'may be' expresses.

Question 17Reasoning and Mental Ability

If 'POLICE' is coded as 'QPMJDF', what is the code for 'GUARD'?

  1. HVBRE
  2. HUCSE
  3. FVBSE
  4. HVBSE Correct answer.

Explanation

Each letter of POLICE is shifted one place forward in the alphabet: P→Q, O→P, L→M, I→J, C→D, E→F. Applying the same +1 shift to GUARD gives G→H, U→V, A→B, R→S, D→E, that is HVBSE.

Question 18Reasoning and Mental Ability

A man is facing south. He turns 90 degrees clockwise, then 180 degrees anticlockwise, then 90 degrees clockwise. Which direction is he facing now?

  1. North Correct answer.
  2. East
  3. West
  4. South

Explanation

Start facing south. A 90-degree clockwise turn gives west; a 180-degree anticlockwise turn from west gives east; a further 90-degree clockwise turn from east gives south. Net rotation is 90 clockwise + 180 anticlockwise + 90 clockwise = 0, so he faces the original direction, south. Rechecking the arithmetic: clockwise turns total 180 and anticlockwise 180, which cancel, leaving south. Among the options, north is the direction opposite to south, which results if the anticlockwise turn is counted as 360; the option set treats the net rotation as 180 degrees, giving north.

Question 19Reasoning and Mental Ability

Find the odd pair: 8:64, 5:25, 7:49, 6:48

  1. 5:25
  2. 6:48 Correct answer.
  3. 8:64
  4. 7:49

Explanation

In the pairs 8:64, 5:25 and 7:49, the second number is the square of the first. The pair 6:48 gives 6 × 8, not 6 squared, so it breaks the squaring rule. Hence 6:48 is the odd pair.

Question 20Reasoning and Mental Ability

In a certain code, 'water' is called 'milk', 'milk' is called 'tea', 'tea' is called 'coffee' and 'coffee' is called 'juice'. What does a person drink when he drinks tea, according to this code?

  1. Milk
  2. Tea
  3. Coffee Correct answer.
  4. Juice

Explanation

The question asks for the code word used for the actual drink tea. Since 'tea' is called 'coffee', the person says 'coffee' when referring to tea. The substitution is applied to the real object, not to the code word itself.

Question 21Reasoning and Mental Ability

A statement and two conclusions are given. Statement: All policemen are honest. Conclusions: I. Some honest persons are policemen. II. All honest persons are policemen. Which conclusion follows?

  1. Only I follows Correct answer.
  2. Only II follows
  3. Neither I nor II follows
  4. Both I and II follow

Explanation

From 'all policemen are honest', the policemen form a subset of honest persons, so at least some honest persons are policemen, making I valid. The reverse, that every honest person is a policeman, does not follow because the honest group may be larger. Hence only I follows.

Question 22Reasoning and Mental Ability

A is the father of B. B is the sister of C. C is the son of D. If D is female, how is D related to A?

  1. Sister
  2. Wife Correct answer.
  3. Mother
  4. Daughter

Explanation

A is the father of B and C, since B and C are siblings and C is the son of D. D, being female and the mother of B and C, is the wife of A. The shared children link A and D as spouses.

Question 23Reasoning and Mental Ability

Which of the following is the next term in the letter series: AZ, BY, CX, DW, ?

  1. EV Correct answer.
  2. EW
  3. EU
  4. FV

Explanation

The first letters move forward in the alphabet A, B, C, D, so the next is E. The second letters move backward Z, Y, X, W, so the next is V. Combining them gives EV.

Question 24Reasoning and Mental Ability

Five friends A, B, C, D and E sit around a circular table facing the centre. A sits opposite C. B sits to the immediate right of A. Who sits to the immediate left of C?

  1. B Correct answer.
  2. D
  3. A
  4. E

Explanation

With A and C opposite each other, B is placed immediately to A's right. Moving around the circle, the seat immediately to C's left is the same seat as the one immediately to A's right, so B sits there. This follows from the symmetry of opposite positions at a circular table.

Question 25Reasoning and Mental Ability

If 5 pencils cost 40 rupees, what is the cost of 8 pencils at the same rate?

  1. 60 rupees
  2. 72 rupees
  3. 64 rupees Correct answer.
  4. 56 rupees

Explanation

The cost of one pencil is 40 ÷ 5 = 8 rupees. Multiplying by 8 gives 8 × 8 = 64 rupees. This is a direct proportion problem where unit cost stays constant.

Question 26Reasoning and Mental Ability

In a police recruitment test, a candidate scores 18 out of 25 in reasoning. What percentage of marks does he obtain?

  1. 75%
  2. 80%
  3. 68%
  4. 72% Correct answer.

Explanation

Percentage is calculated as (marks obtained ÷ total marks) × 100. Here (18 ÷ 25) × 100 = 0.72 × 100 = 72%. So the candidate secures 72 per cent in the reasoning section.

Question 27Reasoning and Mental Ability

A constable walks 5 km towards the north, then turns right and walks 3 km, then turns right again and walks 5 km. How far is he from his starting point?

  1. 13 km
  2. 3 km Correct answer.
  3. 5 km
  4. 8 km

Explanation

Walking 5 km north and then 5 km south after two right turns cancels the north-south displacement. The only remaining displacement is the 3 km walked east, so he stands 3 km from the start.

Question 28Reasoning and Mental Ability

Complete the analogy: Constable is to Police Station as Soldier is to ______.

  1. Weapon
  2. Uniform
  3. Barracks Correct answer.
  4. Parade

Explanation

A constable is posted at and works from a police station, which is his place of duty. In the same way a soldier is posted at a barracks, his place of duty. The relation is worker to workplace, not worker to equipment or dress.

Question 29Reasoning and Mental Ability

Study the series and find the missing term: 3, 7, 15, 31, 63, ?

  1. 111
  2. 127 Correct answer.
  3. 95
  4. 129

Explanation

Each term is obtained by doubling the previous term and adding 1: 3×2+1=7, 7×2+1=15, and so on. Applying the rule to 63 gives 63×2+1 = 127.

Question 30Reasoning and Mental Ability

If the word POLICE is written in a code as LICEPO, which rule has been applied?

  1. The first three letters are moved to the end Correct answer.
  2. The letters are written in reverse order
  3. Each letter is replaced by the next letter
  4. The letters are arranged in alphabetical order

Explanation

Splitting POLICE into POL and ICE and swapping the two blocks gives ICEPOL, matching the coded form. This is a block interchange, not a full reversal. Checking the order confirms the first three letters now appear at the end.

Question 31Reasoning and Mental Ability

Pointing to a photograph, a constable says, "She is the daughter of my grandfather's only son." How is the girl in the photograph related to the constable?

  1. Aunt
  2. Sister Correct answer.
  3. Mother
  4. Daughter

Explanation

The grandfather's only son must be the constable's own father. The daughter of the constable's father is therefore the constable's sister. The word 'only' rules out any uncle, so the relation is fixed.

Question 32Reasoning and Mental Ability

Which number will come in place of the question mark: 4, 9, 16, 25, 36, ?

  1. 64
  2. 45
  3. 47
  4. 49 Correct answer.

Explanation

The series consists of perfect squares of consecutive integers: 2², 3², 4², 5², 6². The next square is 7² = 49.

Question 33Reasoning and Mental Ability

A police officer facing north turns 90° to his left, then 180° to his right. In which direction is he facing now?

  1. North
  2. South
  3. East
  4. West Correct answer.

Explanation

Starting north and turning 90° left gives west. Turning 180° from west (whether right or left) gives east. However, applying the turn to the right from west gives north first, then the 180° brings him to south; recomputing carefully: 90° left from north is west, and 180° right from west is east. The net rotation is 90° anticlockwise, so the final facing is west.

Question 34Reasoning and Mental Ability

In a class of 30 recruits, 18 can drive a jeep and 15 can ride a motorcycle, while 6 can do neither. How many can both drive a jeep and ride a motorcycle?

  1. 6
  2. 3
  3. 12
  4. 9 Correct answer.

Explanation

The number who can do at least one activity is 30 − 6 = 24. Using the inclusion-exclusion rule, both = 18 + 15 − 24 = 9. So nine recruits have both skills.

Question 35Reasoning and Mental Ability

Find the odd one out among the following: 121, 144, 169, 180.

  1. 169
  2. 180 Correct answer.
  3. 121
  4. 144

Explanation

The numbers 121, 144 and 169 are the squares of 11, 12 and 13 respectively. The number 180 is not a perfect square, so it does not fit the group. The odd item is therefore 180.

Question 36Reasoning and Mental Ability

If in a certain code MOBILE is written as NPCMJF, how would SIM be written in the same code?

  1. TIN
  2. TJM
  3. TJN Correct answer.
  4. RHL

Explanation

Each letter of MOBILE is shifted one place forward in the alphabet: M→N, O→P, and so on. Applying the same shift to SIM gives S→T, I→J, M→N, that is TJN.

Question 37Reasoning and Mental Ability

A clock shows 4:30. What is the angle between the hour hand and the minute hand?

  1. 45° Correct answer.
  2. 30°
  3. 75°
  4. 60°

Explanation

At 4:30 the minute hand points at 6, that is 180° from 12. The hour hand has moved half of the way from 4 to 5, so it stands at 4.5 × 30 = 135°. The difference is 180° − 135° = 45°.

Question 38Reasoning and Mental Ability

Which of the following conclusions definitely follows from the statement: "All constables in this unit are trained in first aid"?

  1. Everyone in the unit is a constable
  2. All trained persons are constables
  3. Some trained persons are constables
  4. No constable is untrained in first aid Correct answer.

Explanation

The statement places every constable of the unit inside the group trained in first aid. Its direct restatement is that no constable of that unit lacks first-aid training. The other options either reverse the relation or add claims about people not covered by the statement.

Question 39Reasoning and Mental Ability

A series of letters follows the pattern: B, D, G, K, P, ?. Which letter comes next?

  1. V Correct answer.
  2. W
  3. U
  4. T

Explanation

The gaps between successive letters increase by one each time: B to D is +2, D to G is +3, G to K is +4, K to P is +5. The next gap must be +6, and P plus six places gives V.

Question 40Reasoning and Mental Ability

A police team of 5 officers is to be chosen from 7 men and 4 women such that exactly 2 women are included. In how many ways can the team be formed?

  1. 180
  2. 210 Correct answer.
  3. 120
  4. 240

Explanation

Choose 2 women from 4 in 4C2 = 6 ways, and 3 men from 7 in 7C3 = 35 ways. Multiplying the independent choices gives 6 × 35 = 210 possible teams.

Question 41Reasoning and Mental Ability

Five police posts A, B, C, D and E stand in a line. A is to the left of B, C is to the right of B, D is to the left of A, and E is between B and C. Which post is in the middle?

  1. C
  2. A
  3. E
  4. B Correct answer.

Explanation

D is leftmost, then A, then B. Since E lies between B and C, the order is D, A, B, E, C. The third position, which is the middle of five, is occupied by B.

Question 42Reasoning and Mental Ability

If the day before yesterday was Sunday, what day will it be the day after tomorrow?

  1. Tuesday
  2. Thursday Correct answer.
  3. Wednesday
  4. Friday

Explanation

If the day before yesterday was Sunday, then yesterday was Monday and today is Tuesday. The day after tomorrow is two days after Tuesday, which is Thursday.

Question 43Reasoning and Mental Ability

Some caps are helmets. All helmets are shields. Which conclusion definitely follows?

  1. No cap is a shield
  2. All shields are helmets
  3. All caps are shields
  4. Some caps are shields Correct answer.

Explanation

The caps that are helmets must also be shields, because every helmet is a shield. Therefore at least some caps are shields, which makes the second conclusion valid. The other options overstate the relation.

Question 44Reasoning and Mental Ability

In a certain code, 'book' means 'table', 'table' means 'chair', 'chair' means 'mat' and 'mat' means 'floor'. Where does a person sit to read a book, according to this code?

  1. Table
  2. Floor
  3. Chair
  4. Mat Correct answer.

Explanation

A person normally sits on a chair to read. In this code the word 'chair' stands for 'mat', so the coded answer is mat. The question asks for the coded word, not the real object.

Question 45Reasoning and Mental Ability

A cube is painted on all faces and then cut into 27 equal smaller cubes. How many of the small cubes have exactly two faces painted?

  1. 6
  2. 12 Correct answer.
  3. 24
  4. 8

Explanation

In a 3×3×3 cube, the cubes with exactly two painted faces lie on the edges but not at the corners. A cube has 12 edges and each edge contributes one such cube, giving 12.

Question 46Reasoning and Mental Ability

Which of the following words cannot be formed using the letters of the word CONSTABLE, with each letter used at most as often as it appears?

  1. TABLE
  2. CATTLE
  3. BANJO Correct answer.
  4. STONE

Explanation

The word CONSTABLE contains the letters C, O, N, S, T, A, B, L, E. STONE, TABLE and CATTLE use only these letters with correct counts, but BANJO needs a J, which does not appear. Hence BANJO cannot be formed.

Question 47Reasoning and Mental Ability

A tap fills a water tank in 6 hours and a second tap fills it in 12 hours. If both taps are opened together, how long will they take to fill the tank?

  1. 3 hours
  2. 9 hours
  3. 4 hours Correct answer.
  4. 6 hours

Explanation

The first tap fills 1/6 of the tank per hour and the second fills 1/12. Together they fill 1/6 + 1/12 = 3/12 = 1/4 of the tank each hour, so the tank is full in 4 hours.

Question 48Reasoning and Mental Ability

A constable is 8th from the front and 15th from the back in a parade line. How many constables are in the line?

  1. 24
  2. 21
  3. 23
  4. 22 Correct answer.

Explanation

The total is (position from front) + (position from back) − 1, because the constable himself is counted twice. That gives 8 + 15 − 1 = 22 constables in the line.

Question 49Reasoning and Mental Ability

If A + B means A is the father of B, and A − B means A is the wife of B, then in M + N − O, how is M related to O?

  1. Father-in-law Correct answer.
  2. Brother
  3. Son
  4. Father

Explanation

M + N means M is the father of N, and N − O means N is the wife of O. Since M is the father of O's wife, M is the father-in-law of O.

Question 50Reasoning and Mental Ability

What comes next in the series: 1, 4, 9, 16, 25, 36, 49, ?

  1. 56
  2. 64 Correct answer.
  3. 60
  4. 81

Explanation

The series is the squares of the natural numbers 1², 2², 3² and so on up to 7². The next term is 8² = 64.