SSC CGL 25 September 2025 · Shift 1 · General Intelligence & Reasoning — questions with answers · ShikshaSphere
Chapter 157 of 192
25 September 2025 · Shift 1
General Intelligence & Reasoning
25 questions ~25 min readFree
25 questions
A
1
In the word "CHEMISTRY", what is the alphabetical index (A = 1 to Z = 26) of the 2nd letter from the right?
A.18
B.19
C.15
D.20
Solution
Place value
CHEMISTRY has nine letters: C, H, E, M, I, S, T, R, Y.
Counting from the right: Y is 1st and R is 2nd.
R is the 18th letter of the alphabet.
= 18 — option (a).
2
Choose the address that is the same as the one given below.
Sample Address: 45-C, Green Valley Apartments, Sector 10, Noida, Uttar Pradesh - 201301
A.45-C, Green Valley Apts., Sector 10, Noida, Uttar Pradesh - 201301
B.45-C, Green Valley Apartments, Sector 10, Noida, Uttar Pradesh - 201301
C.45C, Green Valley Apartments, Sector 10, Noida, Uttar Pradesh - 201301
D.46-C, Green Valley Apartments, Sector 10, Noida, Uttar Pradesh - 202301
Solution
Address matching
(a) shortens Apartments to Apts.; (c) drops the hyphen in 45-C.
(d) changes the house number to 46-C and the PIN to 202301.
Only (b) matches the sample exactly.
Hence option (b).
3
The seminar in Mysore occurred 2 days before Bangalore, while Mangalore was 3 days after Bangalore. If Mangalore's seminar was on 20th February, when did the Mysore seminar happen?
A.13th February
B.14th February
C.15th February
D.16th February
Solution
Date reasoning
Mangalore was 3 days after Bangalore, so Bangalore = 20 − 3 = 17 February.
Mysore was 2 days before Bangalore.
17 − 2.
= 15 February — option (c).
4
If 2 × 2 = 4, then 3 × 3 = ?
A.27
B.30
C.35
D.36
Solution
Self-power pattern
The rule is not ordinary multiplication but a raised to its own power.
Check: 2² = 4 ✓.
So 3 × 3 means 3³.
= 27 — option (a).
5
What should come in place of the question mark '?' in the following number series?
45, 40, ?, 35, 55, 30
A.50
B.60
C.70
D.65
Solution
Two alternating series
Read the odd and even places as two separate chains.
Odd places: 45, ?, 55 — rising by 5.
Even places: 40, 35, 30 — falling by 5.
So the missing term is 45 + 5 = 50 — option (a).
6
Read the given statement and conclusions carefully. Decide which of the given conclusions is/are definitely TRUE from the statement.Statement: M < P < R ≤ Q = S ≥ L < T
Conclusion I: T < M
Conclusion II: Q > T
A.Both Conclusion I and Conclusion II are TRUE
B.Neither Conclusion I nor Conclusion II is TRUE
C.Only Conclusion II is TRUE
D.Only Conclusion I is TRUE
Solution
Coded inequality
T appears only in "L < T", and L is reached through Q = S ≥ L.
So T is bigger than L, but L is smaller than Q — the signs reverse at L.
Neither T versus M nor Q versus T can therefore be settled.
Neither conclusion — option (b).
7
Which city is different?
A.Jaipur
B.Udaipur
C.Jodhpur
D.Kolkata
Solution
Rajasthan cities
Jaipur, Udaipur and Jodhpur are all cities of RAJASTHAN.
Kolkata is in West Bengal.
So it belongs to a different state.
Hence option (d).
8
X is the wife of Y. Z is the son of X. How is Z related to Y?
A.Daughter
B.Son
C.Grandmother
D.Mother
Solution
Blood relation
X and Y are husband and wife.
Z is the son of X, and therefore of Y as well.
Z is male.
Z is the son of Y — option (b).
9
Find the missing number:
24 : 216 :: 32 : ?
A.100
B.120
C.115
D.125
Solution
Cube of digit sum
Add the digits of the first number, then cube the sum.
2 + 4 = 6 and 6³ = 216 ✓.
3 + 2 = 5.
5³ = 125 — option (d).
10
Read the following statements carefully and identify the conclusion that follows.Statements:
Some students are intelligent.
All intelligent people are hardworking.
Conclusions:
I. Some students are hardworking.
II. All students are hardworking.
A.Only I follows
B.Only II follows
C.Both I and II follow
D.Neither I nor II follows
Solution
Syllogism
Some students are intelligent, and every intelligent person is hardworking.
So those students are certainly hardworking — I follows.
The remaining students may or may not be, so II is not certain.
Only I — option (a).
11
Read the following statements carefully and identify the conclusion that follows.Statements:
All pencils are pens.
Some pens are markers.
No marker is a book.
Conclusions:
I. Some pencils are not books.
II. All markers are pens.
A.Only I follows
B.Only II follows
C.Both I and II follow
D.Neither I nor II follows
Solution
Syllogism
Pencils lie inside pens, but only SOME pens are markers, so pencils need not be markers at all.
Hence nothing fixes pencils against books — I does not follow.
"Some pens are markers" also never gives "all markers are pens" — II does not follow.
Neither follows — option (d).
12
If "GANDHI" is coded as "DXKAEF", what is the code for "MANDELA"?
A.JEZJAG
B.JFZKAG
C.JXKAFE
D.JXKABIX
Solution
Coding (−3)
Every letter moves three places BACK: G−3 = D, A−3 = X (cyclic), N−3 = K, D−3 = A, H−3 = E, I−3 = F.
Apply to MANDELA: M−3 = J, A−3 = X, N−3 = K, D−3 = A.
E−3 = B, L−3 = I, A−3 = X.
Hence JXKABIX — option (d).
13
What comes next?
EB, FC, GD, ?
A.IF
B.HE
C.FI
D.JG
Solution
Letter pairs (+1)
1st letters: E, F, G — each +1 ⇒ next is H.
2nd letters: B, C, D — each +1 ⇒ next is E.
So the pair is H and E.
Hence HE — option (b).
14
Complete the series.
36, 49, 64, 81, 100, ?
A.120
B.119
C.121
D.131
Solution
Consecutive squares
These are the squares of consecutive numbers.
6² = 36, 7² = 49, 8² = 64, 9² = 81, 10² = 100 ✓.
Next is 11².
= 121 — option (c).
15
Which word does NOT belong to the group based on meaning?
OX, DOG, FOX, RAT, AXE
A.OX
B.DOG
C.FOX
D.AXE
Solution
Animals vs tool
Ox, dog, fox and rat are all ANIMALS.
An axe is a tool used for chopping.
So it belongs to a different category.
Hence option (d).
16
Find the odd one out:
Lucknow, Bhopal, Nagpur, Ranchi, Thiruvananthapuram
A.Lucknow
B.Bhopal
C.Nagpur
D.Ranchi
Solution
State capitals
Lucknow, Bhopal, Ranchi and Thiruvananthapuram are STATE CAPITALS.
They serve Uttar Pradesh, Madhya Pradesh, Jharkhand and Kerala respectively.
Nagpur is not a state capital — Mumbai is the capital of Maharashtra.
Hence option (c).
17
What should come at the place of the question mark?
90, 82, 74, 66, ?, 50
A.58
B.68
C.62
D.50
Solution
Series (−8)
Each term falls by 8.
90 − 8 = 82, 82 − 8 = 74, 74 − 8 = 66 ✓.
66 − 8 = 58, and 58 − 8 = 50 ✓.
= 58 — option (a).
18
A train travels a distance of 320 km in 8 hours. If the train increases its speed by 40 km/h, how much time will it take to cover the same distance?
A.3 h
B.3.2 h
C.3.6 h
D.4 h
Solution
Speed and time
Original speed = = 40 km/h.
New speed = 40 + 40 = 80 km/h.
Time = .
= 4 hours — option (d).
19
In a code language, "The book is interesting" is coded as "zo qo uo vo", "The book is boring" is coded as "zo qo to vo" and "The movie is interesting" is coded as "do qo uo vo". What is the code for "The movie is boring"?
A.zo do vo to
B.do qo vo to
C.qo so zo vo
D.ko fo vo vo
Solution
Code language
Lines 1 and 2 differ only in interesting/boring, and in uo/to ⇒ interesting = uo and boring = to.
Lines 1 and 3 differ only in book/movie, and in zo/do ⇒ book = zo and movie = do.
So qo and vo stand for "the" and "is".
The movie is boring = do, qo, vo, to — option (b).
20
If in a certain code 'ORTHN' is written as 'NHTRO', how will 'NORTH' be written?
A.URKPN
B.HTRON
C.XAHLN
D.JUKEE
Solution
Reversal code
The code simply writes the word backwards: ORTHN → NHTRO.
Reverse NORTH letter by letter.
N-O-R-T-H becomes H-T-R-O-N.
= HTRON — option (b).
21
If 6 pens cost ₹60, how many pens can you buy for ₹180?
A.18
B.12
C.15
D.16
Solution
Unitary method
Cost of one pen = = ₹10.
Number of pens for ₹180 = .
= 18.
Hence option (a).
If XJOEPX is coded as YKPFQY, how is WINDOW coded?
A.XJOEPX
B.XKPFQX
C.XKOEQY
D.XKPEQY
Solution
Coding (+1)
Every letter moves +1: X+1 = Y, J+1 = K, O+1 = P, E+1 = F, P+1 = Q, X+1 = Y.
Apply to WINDOW: W+1 = X, I+1 = J, N+1 = O.
D+1 = E, O+1 = P, W+1 = X.
Hence XJOEPX — option (a).
25
If in a certain language 'ABSENT' is written as 'ZARFMS', how is 'COVERT' written in that code?
A.BNUFQS
B.BNUFDS
C.BUNSFD
D.BCQTRD
Solution
Position-wise shifts
Compare ABSENT with ZARFMS: A−1 = Z, B−1 = A, S−1 = R, but E+1 = F, then N−1 = M and T−1 = S.
So every letter moves −1 except the FOURTH, which moves +1.
Apply to COVERT: C−1 = B, O−1 = N, V−1 = U, E+1 = F.
R−1 = Q, T−1 = S ⇒ BNUFQS — option (a).
Finished reading? Now test yourself.
The same 25 questions, but with a timer and the answers hidden — 15 minutes.
CHEMISTRY has nine letters: C, H, E, M, I, S, T, R, Y.
Counting from the right: Y is 1st and R is 2nd.
R is the 18th letter of the alphabet.
= 18 — option (a).
Mangalore was 3 days after Bangalore, so Bangalore = 20 − 3 = 17 February.
Mysore was 2 days before Bangalore.
17 − 2.
= 15 February — option (c).
The rule is not ordinary multiplication but a raised to its own power.
Check: 2² = 4 ✓.
So 3 × 3 means 3³.
= 27 — option (a).
Read the odd and even places as two separate chains.
Odd places: 45, ?, 55 — rising by 5.
Even places: 40, 35, 30 — falling by 5.
So the missing term is 45 + 5 = 50 — option (a).
T appears only in "L < T", and L is reached through Q = S ≥ L.
So T is bigger than L, but L is smaller than Q — the signs reverse at L.
Neither T versus M nor Q versus T can therefore be settled.
Neither conclusion — option (b).
Jaipur, Udaipur and Jodhpur are all cities of RAJASTHAN.
Kolkata is in West Bengal.
So it belongs to a different state.
Hence option (d).
X and Y are husband and wife.
Z is the son of X, and therefore of Y as well.
Z is male.
Z is the son of Y — option (b).
Add the digits of the first number, then cube the sum.
2 + 4 = 6 and 6³ = 216 ✓.
3 + 2 = 5.
5³ = 125 — option (d).
Some students are intelligent, and every intelligent person is hardworking.
So those students are certainly hardworking — I follows.
The remaining students may or may not be, so II is not certain.
Only I — option (a).
Pencils lie inside pens, but only SOME pens are markers, so pencils need not be markers at all.
Hence nothing fixes pencils against books — I does not follow.
"Some pens are markers" also never gives "all markers are pens" — II does not follow.
Neither follows — option (d).
Every letter moves three places BACK: G−3 = D, A−3 = X (cyclic), N−3 = K, D−3 = A, H−3 = E, I−3 = F.
Apply to MANDELA: M−3 = J, A−3 = X, N−3 = K, D−3 = A.
E−3 = B, L−3 = I, A−3 = X.
Hence JXKABIX — option (d).
1st letters: E, F, G — each +1 ⇒ next is H.
2nd letters: B, C, D — each +1 ⇒ next is E.
So the pair is H and E.
Hence HE — option (b).
These are the squares of consecutive numbers.
6² = 36, 7² = 49, 8² = 64, 9² = 81, 10² = 100 ✓.
Next is 11².
= 121 — option (c).
Ox, dog, fox and rat are all ANIMALS.
An axe is a tool used for chopping.
So it belongs to a different category.
Hence option (d).
Lucknow, Bhopal, Ranchi and Thiruvananthapuram are STATE CAPITALS.
They serve Uttar Pradesh, Madhya Pradesh, Jharkhand and Kerala respectively.
Nagpur is not a state capital — Mumbai is the capital of Maharashtra.
Hence option (c).
Each term falls by 8.
90 − 8 = 82, 82 − 8 = 74, 74 − 8 = 66 ✓.
66 − 8 = 58, and 58 − 8 = 50 ✓.
= 58 — option (a).
Original speed = = 40 km/h.
New speed = 40 + 40 = 80 km/h.
Time = .
= 4 hours — option (d).
Lines 1 and 2 differ only in interesting/boring, and in uo/to ⇒ interesting = uo and boring = to.
Lines 1 and 3 differ only in book/movie, and in zo/do ⇒ book = zo and movie = do.
So qo and vo stand for "the" and "is".
The movie is boring = do, qo, vo, to — option (b).
The code simply writes the word backwards: ORTHN → NHTRO.
Reverse NORTH letter by letter.
N-O-R-T-H becomes H-T-R-O-N.
= HTRON — option (b).
Cost of one pen = = ₹10.
Number of pens for ₹180 = .
= 18.
Hence option (a).
Replace the symbols: 4 + 5 × 2 − 3.
BODMAS: 5 × 2 = 10.
4 + 10 − 3.
= 11 — option (a).
The product is 1 × 2 × 3 × 4 × 5 × 6 × 7.
1×2×3×4 = 24 and 5×6×7 = 210.
24 × 210.
= 5040 — option (a).
Every letter moves +1: X+1 = Y, J+1 = K, O+1 = P, E+1 = F, P+1 = Q, X+1 = Y.
Apply to WINDOW: W+1 = X, I+1 = J, N+1 = O.
D+1 = E, O+1 = P, W+1 = X.
Hence XJOEPX — option (a).
Compare ABSENT with ZARFMS: A−1 = Z, B−1 = A, S−1 = R, but E+1 = F, then N−1 = M and T−1 = S.
So every letter moves −1 except the FOURTH, which moves +1.
Apply to COVERT: C−1 = B, O−1 = N, V−1 = U, E+1 = F.
R−1 = Q, T−1 = S ⇒ BNUFQS — option (a).