SSC GD Reasoning Questions with Detailed Solutions

Get SSC GD Reasoning Questions to prepare for your upcoming exam. Solve the most expected questions and detailed solutions that can be asked in the exam.

Important SSC GD Reasoning Questions

Q1.

A series is given with one term wrong. Select that wrong term from the given alternatives.
CF1, GD4, KB9, OZ16, TW25, WV36

A.
CF1
B.
KB9
C.
TW25
✓ Correct
D.
WV36

Answer & Solution

Correct option is C

Given:

CF1, GD4, KB9, OZ16, TW25, WV36

Logic: 1st letter +4; 2nd letter −2; Number = consecutive squares.

Letter Pattern

First letters:

C → G → K → O → S → W (+4 each time)

Second letters:

F → D → B → Z → X → V (−2 each time, with wrap around)

Number Pattern

1, 4, 9, 16, 25, 36 = 1², 2², 3², 4², 5², 6²

The fifth term should be SX25, but the given term is TW25.

Answer: (C) TW25

Q2.

Select the option that is related to the fifth number in the same way as the second number is related to the first number and fourth number is related to third number. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 - Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
1083 : 363 :: 2487 : 831 :: 804 : ?

A.
272
B.
270
✓ Correct
C.
261
D.
264

Answer & Solution

Correct option is B

Given:

1083 : 363 :: 2487 : 831 :: 804 : ?

1083 : 363

1083 ÷ 3 = 361
361 + 2 = 363
2487 : 831
2487 ÷ 3 = 829
829 + 2 = 831

Similarly,

804 : ?

804 ÷ 3 = 268
268 + 2 = 270

So, 804 : 270

Correct Answer: (B) 270

Q3.

Find the next number in the sequence.
4, 11, 38, 159, 806, ?

A.
2418
B.
5235
C.
4030
D.
4849
✓ Correct

Answer & Solution

Correct option is D

Information Given:

Series: 4, 11, 38, 159, 806, ?

Logic: Multiply by 2, 3, 4, 5, 6 then Add 3, 5, 7, 11, 13 (consecutive odd primes)

4 × 2 + 3 = 11

11 × 3 + 5 = 38

38 × 4 + 7 = 159

159 × 5 + 11 = 806

806 × 6 + 13

= 4836 + 13

= 4849

Final Answer:

4849

Final Correct Option:

Q4.

7 boys P, Q, R, S, T, W and X are sitting in a row facing north (not necessarily in the same order). X is sixth to the right of P. S is exactly in the middle of the row. Q is fourth to the left of W. R is not fourth to the right of P. How many boys are sitting to the right of T?

A.
3
B.
2
✓ Correct
C.
4
D.
5

Answer & Solution

Correct option is B

Given:

7 boys P, Q, R, S, T, W and X are sitting in a row facing north (not necessarily in the same order).

X is sixth to the right of P.

S is exactly in the middle of the row.

Q is fourth to the left of W.

R is not fourth to the right of P.

So, 2 boys are sitting to the right of T

Thus, the correct option is: (b)

Q5.

In a certain coded language 'VISE' is coded as 'WMQA' and 'FLIT' is coded as 'GPGP'. How will 'TWIN' be coded in the same code language?

A.
UAGJ
✓ Correct
B.
VBFL
C.
UBEJ
D.
SCGI

Answer & Solution

Correct option is A

Information Given:

VISE → WMQA

FLIT → GPGP

Find the code for TWIN.

Logic: 1st letter +1, 2nd letter +4, 3rd letter −2, 4th letter −4 in alphabetically.

VISE → WMQA

V → W (+1)

I → M (+4)

S → Q (−2)

E → A (−4)

FLIT → GPGP

F → G (+1)

L → P (+4)

I → G (−2)

T → P (−4)

Now apply the same rule to TWIN:

T → U (+1)

W → A (+4, with wrap-around)

I → G (−2)

N → J (−4)

So, the code is:

TWIN → UAGJ

Correct Answer: A. UAGJ

Q6.

Arrange the given words in the sequence in which they occur in the dictionary.
1. Girth
2. Girl
3. Girdle
4. Gird
5. Giraffe

A.
54231
B.
12345
C.
54321
✓ Correct
D.
12435

Answer & Solution

Correct option is C

Given:

1. Girth
2. Girl
3. Girdle
4. Gird
5. Giraffe

Let's check:

All begin with "Gir"
Giraffe (Gira...)

Gird (Gird)

Girdle (Gird + le)
Girl (Girl...)
Girth (Girt...)

So, Order: 5,4,3,2,1

Final Answer:

54321

Final Correct Option:

Q7.

In the following question, set of letter clusters are given. The letter clusters of each set are related to the letter clusters of the same set by some Logic/Rule/Relation. From the given alternatives, select a group of letter clusters which follows the same Logic/Rule/Relation.
(OJ, QL, JO) (EB, GD, TW)

A.
(AV, FW, YD)
B.
(DW, IX, VC)
C.
(SL, UN, FM)
✓ Correct
D.
(VX, ZY, DB)

Answer & Solution

Correct option is C

Given;

(OJ, QL, JO) (EB, GD, TW)

(OJ, QL, JO)
O +2 → Q
J +2 → L

Q → J (opposite)

L → O (opposite)

(EB, GD, TW)
E +2 → G
B +2 → D

G → T (opposite)

D → W (opposite)

Now check the options:

(A) (AV, FW, YD)
A +5 → F
V +1 → W ✗
(B) DW → IX
D +5 → I
W +1 → X ✗
(C) (SL, UN, FM)
S +2 → U
L +2 → N

U → F (opposite)
N → M (opposite) ✓
(D) (VX, ZY, DB)
V +4 → Z
X +1 → Y ✗

Only Option (C) follows the same +2, +2 pattern.

Correct Answer: (C) (SL, UN, FM)

Q8.

What is the smallest positive integer that is divisible by all 12, 15 and 20?

A.
60
✓ Correct
B.
120
C.
180
D.
240

Answer & Solution

Correct option is A

Information Given:

Find the smallest number divisible by 12, 15, and 20.

Logic:

Find the LCM.

Explanation:

12 = 2² × 3

15 = 3 × 5

20 = 2² × 5

LCM = 2² × 3 × 5 = 60

Short Trick:

Take the highest powers of all prime factors.

Final Answer:

Final Correct Option:

Q9.

Select the option that is related to the fourth letter-number cluster in the same way as the first letter-number cluster is related to the second letter-number cluster and fifth letter-number cluster is related to sixth letter-number cluster. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking own 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
CK42 : EM84 :: ? : ZW96 :: KI14 : MK28

A.
XV38
B.
XU48
✓ Correct
C.
UX48
D.
BY38

Answer & Solution

Correct option is B

Given:

CK42 : EM84 :: ? : ZW96 :: KI14 : MK28

Pattern:
Each letter → +2
Number → ×2
CK42 → EM84
C +2 → E
K +2 → M
42 ×2 → 84
KI14 → MK28
K +2 → M
I +2 → K
14 ×2 → 28
Similarly,
? → ZW96
X +2 → Z
U +2 → W
48 ×2 → 96
So, XU48 → ZW96

Correct Answer: (B) XU48

Q10.

A person has ₹7600 in the denominations of ₹10, ₹20, ₹50, ₹100, and ₹200 notes. The number of notes of each denomination is equal. Find the total number of notes.

A.
130
B.
120
C.
110
D.
100
✓ Correct

Answer & Solution

Correct option is D

Information Given:

Total money = ₹7600

Equal number of ₹10, ₹20, ₹50, ₹100, ₹200 notes

Logic:

Let the number of each type of note = x.

Explanation:

Total value of one set:

10 + 20 + 50 + 100 + 200 = 380

So,

380x = 7600

x = 20

Total notes = 5 × 20 = 100

Final Answer:

100

Final Correct Option:

Q11.

Select the option that is related to the second letter cluster in the same way as the third letter cluster is related to the fourth letter cluster and fifth letter cluster is related to sixth letter cluster.
? : XVF :: ANT : WJP :: EUM : AQI

A.
XWH
B.
BZJ
✓ Correct
C.
YXF
D.
AVH

Answer & Solution

Correct option is B

Given:

? : XVF :: ANT : WJP :: EUM : AQI

Pattern: Each letter is shifted 4 positions backward.
ANT → WJP
A -4 → W
N -4 → J
T -4 → P
EUM → AQI
E -4 → A
U -4 → Q
M -4 → I
So, for ? → XVF, move each letter 4 positions forward to find the missing cluster.
X +4 → B
V +4 → Z
F +4 → J
Hence, the missing letter cluster is:
BZJ
Correct Answer: (B) BZJ

Q12.

In a certain coded language 'MIMIC' is coded as 'PNLGY' and 'AEONS' is coded as 'DJNLO'. How will 'RECON' be coded in the same code language?

A.
WJALI
B.
TIDKI
C.
SJDOK
D.
UJBMJ
✓ Correct

Answer & Solution

Correct option is D

Information Given:

MIMIC → PNLGY

AEONS → DJNLO

RECON → ?

Logic: Letter shifts: +3, +5, −1, −2, −4

MIMIC → PNLGY
M +3 → P
I +5 → N
M -1 → L
I -2 → G
C -4 → Y
AEONS → DJNLO
A +3 → D
E +5 → J
O -1 → N
N -2 → L
S -4 → O
Apply the same pattern to RECON:
R +3 → U
E +5 → J
C -1 → B
O -2 → M
N -4 → J
So, RECON → UJBMJ
Correct Answer: (D) UJBMJ

Q13.

Select the option that is related to the fifth letter-number cluster in the same way as the second letter-number cluster is related to the first letter-number cluster and fourth letter-number cluster is related to third letter-number cluster. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
DEW14 : GHT28 :: LKO28 : ONL56 :: ACJ40 : ?

A.
DFG60
B.
DEH60
C.
DFG80
✓ Correct
D.
GFD80

Answer & Solution

Correct option is C

Given:

DEW14 : GHT28 :: LKO28 : ONL56 :: ACJ40 : ?

Pattern:
1st letter → +3
2nd letter → +3
3rd letter → −3
Number
Multiply by 2
DEW14 → GHT28
D +3 → G
E +3 → H
W -3 → T
14 ×2 → 28
LKO28 → ONL56
L +3 → O
K +3 → N
O -3 → L
28 ×2 → 56

Similarly,
ACJ40 → ?
A +3 → D
C +3 → F
J -3 → G
40 ×2 → 80
So, ACJ40 → DFG80
Correct Answer: (C) DFG80

Q14.

If "APPLE" is coded as "CRRNG," how is "ORANGE" coded?

A.
QTCPIG
✓ Correct
B.
QTCPIH
C.
QTCPJG
D.
QTDIPIG

Answer & Solution

Correct option is A

Information Given:

APPLE → CRRNG

ORANGE → ?

Logic: Each letter is shifted +2 in the alphabet.

APPLE → CRRNG
A +2 → C
P +2 → R
P +2 → R
L +2 → N
E +2 → G

ORANGE → ?
O +2 → Q
R +2 → T
A +2 → C
N +2 → P
G +2 → I
E +2 → G

So, ORANGE → QTCPIG

Correct Answer: (A) QTCPIG

Q15.

Find the missing number.
3, 8, 17, 32, ?, 100.

A.
50
B.
57
✓ Correct
C.
63
D.
76

Answer & Solution

Correct option is B

Information Given:

Series: 3, 8, 17, 32, ?, 100

Logic: Term = 2ⁿ + n² (n = 1, 2, 3, ...)

Explanation:

2¹ + 1² = 2 + 1 = 3

2² + 2² = 4 + 4 = 8

2³ + 3² = 8 + 9 = 17

2⁴ + 4² = 16 + 16 = 32

2⁵ + 5² = 32 + 25 = 57

2⁶ + 6² = 64 + 36 = 100 ✔

Short Trick:

Add power of 2 and square of the position.

Final Answer:

Final Correct Option: