SSC CGL 20 September 2025 · Shift 2 · General Intelligence & Reasoning — questions with answers · ShikshaSphere
Chapter 101 of 192
20 September 2025 · Shift 2
General Intelligence & Reasoning
25 questions ~25 min readFree
25 questions
A
1
What is the 3rd vowel from the left in the alphabet?
A.A
B.E
C.I
D.U
Solution
Vowels in order
The vowels in order are A, E, I, O, U.
Counting from the left: A is 1st, E is 2nd.
The 3rd one is I.
Hence option (c).
2
Choose the address that is the same as the one given below.
Sample Address: Plot No. 8, Hauz Khas, South Delhi, Delhi - 110020
A.Plot 8, Hauz Khas, South Delhi, Delhi - 110020
B.Plot No. 8, Hauz Khas, South Delhi, Delhi - 110022
C.Plot No. 8, Hauz Khas Extn, South Delhi, Delhi - 110020
D.Plot No. 8, Hauz Khas, South Delhi, Delhi - 110020
Solution
Address matching
(a) drops 'No.'; (b) changes the PIN to 110022.
(c) adds 'Extn' after Hauz Khas.
Only (d) matches the sample exactly.
Hence option (d).
3
Consider the following statements and choose the option that follows.Statements:
I. Many students are enrolling in online courses.
II. Online learning platforms offer flexible schedules and affordable options.
A.I is the cause and II is the effect
B.II is the cause and I is the effect
C.Both are independent
D.No relation
Solution
Cause and effect
Flexible timings and low cost are the features that attract learners.
Those features exist first and draw students in.
So II is the cause and I is the effect.
Hence option (b).
4
Which of the following alternatives will fill the blanks?
l _ n o _ m n _ l m _ o
A.m, l, o, n
B.l, o, m, n
C.n, m, l, o
D.o, l, n, m
Solution
Letter pattern (lmno)
The block "lmno" repeats three times: lmno / lmno / lmno.
Writing it against the given string, the gaps fall at the 2nd, 5th, 8th and 11th places.
Those places carry m, l, o and n respectively.
Hence m, l, o, n — option (a).
5
In the following number series, a wrong number is given. Find out the WRONG number.
4, 16, 64, 361
A.64
B.16
C.4
D.361
Solution
Squares of even numbers
4 = 2², 16 = 4² and 64 = 8² — all squares of EVEN numbers.
361 = 19², and 19 is odd.
So it breaks the pattern.
Hence 361 — option (d).
6
If × stands for addition, ÷ stands for subtraction, + stands for multiplication, and − stands for division, then 15 × 8 ÷ 2 − 2 + 5 = ?
Which two signs need to be interchanged to make the equation correct?
20 − 5 × 3 ÷ 3 + 6 = 19
A.× and +
B.− and +
C.÷ and −
D.+ and −
Solution
Interchange signs
Interchange + and − : the equation becomes 20 + 5 × 3 ÷ 3 − 6.
BODMAS: 5 × 3 = 15, then 15 ÷ 3 = 5.
20 + 5 − 6 = 19 ✓ — it matches the right-hand side.
Hence + and − — option (d).
8
If in an examination the centre codes and roll numbers are decided by the initials of the State/UT followed by digits in a particular pattern, like RJ30391 for Rajasthan, then which of the following roll numbers is likely to be from Maharashtra?
A.MH21987
B.UP18021
C.GJ11243
D.CH31391
Solution
State code pattern
The first two letters stand for the State: RJ for Rajasthan.
Maharashtra is written as MH.
UP is Uttar Pradesh, GJ Gujarat and CH Chandigarh.
Hence MH21987 — option (a).
9
Find the word that does not fit in the group.
A.Banana
B.Litchi
C.Orange
D.Rose
Solution
Fruits vs flower
Banana, litchi and orange are all FRUITS.
Rose is a flower.
So it belongs to a different category.
Hence option (d).
10
Pointing to Sheetal, Raj said, "She is my mother's only daughter." How is Sheetal related to Raj?
A.Mother
B.Sister
C.Wife
D.Aunt
Solution
Blood relation
Raj's mother's only daughter is Raj's own sister.
Raj himself is male, so he is not the daughter.
Hence Sheetal is Raj’s sister.
Option (b).
11
In a family of six members P, Q, R, S, T and U:
P and Q are a married couple.
R is the only son of P.
S is the daughter of Q.
U is the mother of Q.
Who is the grandmother of R?
A.S
B.Q
C.T
D.U
Solution
Family — grandmother
P and Q are the parents; R and S are their children.
U is the mother of Q, so U is one generation above the couple.
That makes U the grandmother of their children.
Hence U — option (d).
12
What comes next?
1, 2, 3, 5, 8, 13, 21, ?, ?
A.34, 55
B.20, 33
C.22, 35
D.23, 36
Solution
Fibonacci series
Each term is the sum of the two before it.
1+2 = 3, 2+3 = 5, 3+5 = 8, 5+8 = 13, 8+13 = 21 ✓.
Next: 13 + 21 = 34, then 21 + 34 = 55.
Hence 34, 55 — option (a).
13
Identify the odd one out:
A.144
B.349
C.256
D.324
Solution
Perfect squares
144 = 12², 256 = 16² and 324 = 18² — all perfect squares.
349 lies between 18² = 324 and 19² = 361, so it is not a perfect square.
So it breaks the pattern.
Hence option (b).
14
Study the following information and answer the question.
Seven persons — A, R, C, L, M, P and S — live on different floors of a 7-storey building. The bottommost floor is numbered 1 and the topmost floor 7.
S lives immediately above A, who lives on the 4th floor. Two persons live between A and P. R lives immediately below M, who lives below S and above P.
Who lives on the 2nd floor?
A.R
B.M
C.A
D.P
Solution
Floor puzzle
A is on floor 4, so S is on floor 5.
Two persons between A and P puts P on floor 1 (P must be below M).
M is below S and above P, with R immediately below M — so M is on 3 and R on 2.
R lives on the 2nd floor — option (a).
15
These questions are based on the following information.
'A@B' means 'B is the mother of A'.
'A$B' means 'B is the husband of A'.
'A#B' means 'B is the sister of A'.
'A&B' means 'B is the son of A'.
If 'P # Q $ R & S & T', then how is T related to Q?
A.Grandson
B.Granddaughter
C.Daughter
D.Son
Solution
Coded relations
P # Q: Q is the sister of P. Q $ R: R is the husband of Q.
R & S: S is the son of R — so S is the son of the couple Q and R.
S & T: T is the son of S.
T is therefore Q’s grandson — option (a).
16
Read the following statements carefully and identify the conclusion that follows.Statements: All apples are fruits. No fruit is green. All greens are vegetables.
Conclusions:
I. No apples are vegetables.
II. No apples are green.
A.Only I follows
B.Only II follows
C.Both I and II follow
D.Neither I nor II follows
Solution
Syllogism
All apples are fruits and no fruit is green, so no apple can be green — II follows.
Only the GREEN things are said to be vegetables; apples are simply outside that group.
Nothing rules out an apple being a vegetable by some other route, so I is not certain.
Hence Only II — option (b).
17
From the given alternative words, select the word which can be formed using the letters of the given word.
REMARKABLE
A.Back
B.Maker
C.Mineral
D.Market
Solution
Word from letters
REMARKABLE contains R, E, M, A, R, K, A, B, L, E.
MAKER uses M, A, K, E, R — all available ✓.
BACK needs C, MINERAL needs I and N, and MARKET needs T — none of which is present.
Hence option (b).
18
What comes next?
BC, CD, DE, EF, ?
A.GH
B.FG
C.HI
D.FE
Solution
Letter series (+1)
Each pair has two consecutive letters.
The first letters go B, C, D, E — each +1 ⇒ next is F.
So the pair is F and G.
Hence FG — option (b).
19
In a certain code SUGAR becomes RTFZQ. How is WATER written?
A.VZSDQ
B.VTDYQ
C.STDYZ
D.VTDZQ
Solution
Coding (−1)
Each letter moves one step BACK: S−1 = R, U−1 = T, G−1 = F, A−1 = Z, R−1 = Q.
Apply to WATER: W−1 = V, A−1 = Z, T−1 = S.
E−1 = D, R−1 = Q.
Hence VZSDQ — option (a).
20
Find the odd one out from the given alternatives.
A.GDP
B.Inflation
C.Fiscal Deficit
D.Right to Education Act
Solution
Economic indicators
GDP, inflation and fiscal deficit are all ECONOMIC indicators.
The Right to Education Act is a social welfare law.
So it belongs to a different category.
Hence option (d).
21
As a school principal, you find a teacher leaking exam answers to students. What should you do?
A.Ignore the issue to avoid conflict
B.Secretly warn the teacher to stop
C.Suspend the teacher and start an investigation
D.Cancel the exams for all classes
Solution
Ethics — exam leak
Leaking papers destroys the fairness of the examination system.
The proper response is to suspend the teacher and hold a formal inquiry.
Ignoring or quietly warning shields wrongdoing; cancelling all exams punishes innocent students.
Hence option (c).
22
Which interchange of numbers and signs will make the equation correct?
9 × 3 + 5 = 32
A.+ and ×, 3 and 5
B.+ and ×, 9 and 3
C.+ and ×, 5 and 9
D.+ and ×, 5 and 3
Solution
Interchange number and sign
Take option (c): swap + with × and also swap the numbers 5 and 9.
The equation becomes 5 + 3 × 9.
BODMAS: 3 × 9 = 27, then 5 + 27.
= 32 ✓ — option (c).
23
What should come at the place of the question mark?
81, 64, 49, 36, 25, ?
A.40
B.16
C.38
D.34
Solution
Descending squares
These are squares in descending order: 9², 8², 7², 6², 5².
The next term is 4².
4 × 4 = 16.
Hence option (b).
24
In a club of 8 members, a sub-committee of 3 members is to be formed. How many different sub-committees can be formed?
A.56
B.60
C.40
D.50
Solution
Combinations
Order does not matter, so we use combinations.
⁸C₃ = .
= .
= 56 — option (a).
25
If GBNJMZ is coded as HCOKNA, how is FAMILY coded?
A.GBNJMZ
B.HCONLA
C.HCOKMZ
D.HCONMZ
Solution
Coding (+1)
Every letter moves +1: G+1 = H, B+1 = C, N+1 = O, J+1 = K, M+1 = N, Z+1 = A.
Apply to FAMILY: F+1 = G, A+1 = B, M+1 = N.
I+1 = J, L+1 = M, Y+1 = Z.
Hence GBNJMZ — option (a).
Finished reading? Now test yourself.
The same 25 questions, but with a timer and the answers hidden — 15 minutes.
The block "lmno" repeats three times: lmno / lmno / lmno.
Writing it against the given string, the gaps fall at the 2nd, 5th, 8th and 11th places.
Those places carry m, l, o and n respectively.
Hence m, l, o, n — option (a).
4 = 2², 16 = 4² and 64 = 8² — all squares of EVEN numbers.
361 = 19², and 19 is odd.
So it breaks the pattern.
Hence 361 — option (d).
Replace the symbols: 15 × 8 ÷ 2 − 2 + 5 becomes 15 + 8 − 2 ÷ 2 × 5.
BODMAS: 2 ÷ 2 = 1, then 1 × 5 = 5.
15 + 8 − 5.
= 18 — option (b).
Interchange + and − : the equation becomes 20 + 5 × 3 ÷ 3 − 6.
BODMAS: 5 × 3 = 15, then 15 ÷ 3 = 5.
20 + 5 − 6 = 19 ✓ — it matches the right-hand side.
Hence + and − — option (d).
Raj's mother's only daughter is Raj's own sister.
Raj himself is male, so he is not the daughter.
Hence Sheetal is Raj’s sister.
Option (b).
P and Q are the parents; R and S are their children.
U is the mother of Q, so U is one generation above the couple.
That makes U the grandmother of their children.
Hence U — option (d).
Each term is the sum of the two before it.
1+2 = 3, 2+3 = 5, 3+5 = 8, 5+8 = 13, 8+13 = 21 ✓.
Next: 13 + 21 = 34, then 21 + 34 = 55.
Hence 34, 55 — option (a).
144 = 12², 256 = 16² and 324 = 18² — all perfect squares.
349 lies between 18² = 324 and 19² = 361, so it is not a perfect square.
So it breaks the pattern.
Hence option (b).
A is on floor 4, so S is on floor 5.
Two persons between A and P puts P on floor 1 (P must be below M).
M is below S and above P, with R immediately below M — so M is on 3 and R on 2.
R lives on the 2nd floor — option (a).
P # Q: Q is the sister of P. Q $ R: R is the husband of Q.
R & S: S is the son of R — so S is the son of the couple Q and R.
S & T: T is the son of S.
T is therefore Q’s grandson — option (a).
All apples are fruits and no fruit is green, so no apple can be green — II follows.
Only the GREEN things are said to be vegetables; apples are simply outside that group.
Nothing rules out an apple being a vegetable by some other route, so I is not certain.
Hence Only II — option (b).
REMARKABLE contains R, E, M, A, R, K, A, B, L, E.
MAKER uses M, A, K, E, R — all available ✓.
BACK needs C, MINERAL needs I and N, and MARKET needs T — none of which is present.
Hence option (b).
Each pair has two consecutive letters.
The first letters go B, C, D, E — each +1 ⇒ next is F.
So the pair is F and G.
Hence FG — option (b).
Each letter moves one step BACK: S−1 = R, U−1 = T, G−1 = F, A−1 = Z, R−1 = Q.
Apply to WATER: W−1 = V, A−1 = Z, T−1 = S.
E−1 = D, R−1 = Q.
Hence VZSDQ — option (a).
GDP, inflation and fiscal deficit are all ECONOMIC indicators.
The Right to Education Act is a social welfare law.
So it belongs to a different category.
Hence option (d).
Take option (c): swap + with × and also swap the numbers 5 and 9.
The equation becomes 5 + 3 × 9.
BODMAS: 3 × 9 = 27, then 5 + 27.
= 32 ✓ — option (c).
These are squares in descending order: 9², 8², 7², 6², 5².
The next term is 4².
4 × 4 = 16.
Hence option (b).
Order does not matter, so we use combinations.
⁸C₃ = .
= .
= 56 — option (a).
Every letter moves +1: G+1 = H, B+1 = C, N+1 = O, J+1 = K, M+1 = N, Z+1 = A.
Apply to FAMILY: F+1 = G, A+1 = B, M+1 = N.
I+1 = J, L+1 = M, Y+1 = Z.
Hence GBNJMZ — option (a).