SSC CGL 17 September 2025 · Shift 1 · General Intelligence & Reasoning — questions with answers · ShikshaSphere
Chapter 61 of 192
17 September 2025 · Shift 1
General Intelligence & Reasoning
25 questions ~25 min readFree
25 questions
A
1
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
DGM, FIO, HKQ, JMS, ?
A.LST
B.JAS
C.LOU
D.KOU
Solution
Letter series (+2)
Every letter of a cluster moves +2 in the next cluster.
1st letters: D, F, H, J → L; 2nd letters: G, I, K, M → O.
3rd letters: M, O, Q, S → U.
Hence LOU — option (c).
2
Choose the address that is the same as the one given below.
No. 44, Hillcrest Villas, Lucknow, Uttar Pradesh - 171001
Address matching
(a) drops the comma and writes 'Uttarakhand'.
(c) writes 'Lucknou' with 'Rajasthan'; (d) puts 'Maharashtra'.
Only (b) matches the given address exactly.
Hence option (b).
3
Identify the relation between Statement I and Statement II.
Statement I. The production of Kharif crops in the region decreased significantly this year.
Statement II. The region received far below-average rainfall during the monsoon season.
A.I is the cause and II is the effect.
B.II is the cause and I is the effect.
C.Both are independent effects.
D.No relation.
Solution
Cause and effect
Kharif crops depend directly on the monsoon rains.
Poor rainfall (II) comes first and leads to lower output (I).
So the rainfall is the cause and the fall in production is the effect.
Hence option (b).
4
The following equation is incorrect. Which two signs should be interchanged to correct the equation?
30 + 10 ÷ 2 − 5 × 3 = 40
A.+ and ×
B.× and −
C.+ and −
D.− and ÷
Solution
Interchange signs
Interchange + and − : the equation becomes 30 − 10 ÷ 2 + 5 × 3.
BODMAS: 10 ÷ 2 = 5 and 5 × 3 = 15.
30 − 5 + 15 = 40 ✓ — it matches the right-hand side.
Hence + and − — option (c).
5
The given statements are followed by two conclusions. Find out which conclusion is TRUE based on the given statements.Statements: A > B = C, D ≥ E < B, F < A < G, E > H > I
Conclusions:
I. G > D
II. E < G
A.Only conclusion I is true
B.Only conclusion II is true
C.Neither conclusion I nor II is true
D.Both conclusion I and II are true
Solution
Coded inequality
For I: D ≥ E < B — the signs oppose, so D cannot be compared with G ⇒ I is false.
For II: E < B = C < A < G, a single chain of the same direction.
So E < G is definitely true.
Hence Only II — option (b).
6
P is the brother of Q. R is the sister of Q. S is the father of R. How is S related to P?
A.Father
B.Uncle
C.Brother
D.Grandfather
Solution
Blood relation
P, Q and R are all siblings — brother, sibling and sister of the same family.
S is the father of R.
Being the father of one sibling, S is the father of all three.
So S is P’s father — option (a).
7
What comes next: 3, 6, 18, ?, 1944
A.108
B.106
C.103
D.105
Solution
Series (×2, ×3, ×6, ×18)
Each term is the product of the two ideas: 3×2 = 6, 6×3 = 18.
Next multiply by 6: 18 × 6 = 108.
Check the last step: 108 × 18 = 1944 ✓.
Hence 108 — option (a).
8
What will come at the place of question mark?
9, 17, 33, 65, 129, ?
Read the following statement carefully and identify the conclusion that follows.Statement: The government has increased the excise duty on petrol.
Conclusions:
I. Now, common citizens will have to pay a higher price for petrol.
II. The government’s treasury is completely empty.
A.Only Conclusion I follows
B.Only Conclusion II follows
C.Both I and II follow
D.Neither I nor II follows
Solution
Statement — conclusions
Excise duty is passed on to buyers, so retail prices rise — I follows.
An empty treasury is an extreme guess; duties are raised for many reasons — II does not follow.
So only the first conclusion holds.
Hence option (a).
10
Identify the assumptions that must hold for the statement to be valid, then choose the correct option.Statement: High-speed internet and digital collaboration tools have made 'remote work' a viable option for many companies, but ensuring data security and preventing cyber threats remain major challenges.
Assumptions:
I. Reliable internet and digital tools are essential for remote work.
II. Remote work is more productive than office work in every company.
III. Remote working raises the risk of data breaches and cyber threats.
A.Only I and III are implicit
B.Only II and III are implicit
C.Only I is implicit
D.All assumptions are implicit
Solution
Statement — assumptions
The statement credits high-speed internet and digital tools for making remote work viable — I is implicit.
It flags data security and cyber threats as the major challenges of this shift — III is implicit.
II claims greater productivity everywhere — a comparison the statement never makes.
Hence Only I and III — option (a).
11
Read the following statement carefully and identify the conclusion that follows.Statement: After more dustbins were installed in the city’s public parks, incidents of littering have significantly decreased.
Conclusions:
I. Providing convenience to people can bring about a positive change in their behaviour.
II. People litter only because of a lack of dustbins.
A.Only Conclusion I follows
B.Only Conclusion II follows
C.Both I and II follow
D.Neither I nor II follows
Solution
Statement — conclusions
More bins (a convenience) led to less littering — that supports the general idea in I.
II uses the word ONLY, making it an extreme claim; other causes may also exist.
So only the first conclusion follows.
Hence option (a).
12
Which of the following is/are identical to the address given:
Rohan Sharma 18B, Silver Towers, Moti Nagar, Delhi, 110011
1. Rohan Sharma 18B, Silver Towers, Moti Nagar, Delhi, 110011
2. Rohan Sharma 18-B, Silver Towers, Moti Nagar, Delhi, 110011
3. Rohan Sharma 18B, Silver Towers, Moti Nagar, Delhi, 110011
4. Rohan Sharma 18B, Silver Tower, Moti Nagar, Delhi, 110001
A.1 and 2
B.1 and 3
C.2 and 4
D.3 and 4
Solution
Address matching
Set 2 writes the house number as 18-B with a hyphen.
Set 4 drops the s in Towers and changes the PIN.
Sets 1 and 3 match the given address character for character.
Hence 1 and 3 — option (b).
13
Each question involves rearranging specific positions of the letters from the original word, and you must choose the correct transformed version from the options.
SIMPLE is to LMSIPE as TARGET is to:
A.TREAGT
B.AEGTTR
C.ERTAGT
D.GETTAR
Solution
Letter rearrangement
Compare SIMPLE (S I M P L E) with LMSIPE position by position.
The new word takes the letters in the order 5, 3, 1, 2, 4, 6.
Apply the same order to TARGET (T A R G E T): E, R, T, A, G, T.
= ERTAGT — option (c).
14
Find the odd one out:
Lal Bahadur Shastri, Morarji Desai, Chaudhary Charan Singh, Sardar Vallabhbhai Patel, Chandra Shekhar, Dr. Manmohan Singh
A.Lal Bahadur Shastri
B.Morarji Desai
C.Sardar Vallabhbhai Patel
D.Dr. Manmohan Singh
Solution
Prime Ministers
Shastri, Desai, Charan Singh, Chandra Shekhar and Manmohan Singh all served as PRIME MINISTERS of India.
Sardar Vallabhbhai Patel was the first Deputy Prime Minister and Home Minister — never PM.
He breaks the category.
Hence option (c).
15
Rearrange the letters given below to form the name of an instrument:
TIGRUA
A.guitar
B.tugair
C.grutia
D.artuig
Solution
Jumbled word — guitar
The letters T, I, G, R, U, A are to be rearranged.
They form the word GUITAR.
A guitar is a stringed musical instrument.
Hence option (a).
16
What comes next?
PXK, SVI, VTG, ?
A.YRE
B.VTG
C.YTF
D.ZSE
Solution
Letter series (+3, −2, −2)
1st letters: P, S, V — +3 each ⇒ next is Y.
2nd letters: X, V, T — −2 each ⇒ next is R.
3rd letters: K, I, G — −2 each ⇒ next is E.
Hence YRE — option (a).
17
Find the odd one out from the given alternatives:
A.Laterite Soil
B.Desert Soil
C.Mountain Soil
D.Igneous Rock
Solution
Soil types
Laterite, desert and mountain soils are all TYPES OF SOIL.
Igneous rock is a type of ROCK, formed from cooled magma.
It belongs to a different category.
Hence option (d).
18
If 'RUN' is coded as 'QTM', what is the code for 'MOON'?
A.LMMP
B.LNNM
C.LOON
D.LNPN
Solution
Coding (−1)
R−1 = Q, U−1 = T, N−1 = M — every letter moves one step BACK.
Apply to MOON: M−1 = L, O−1 = N.
O−1 = N, N−1 = M.
Hence LNNM — option (b).
19
If 25% of a certain number is 50, what is that number?
A.200
B.250
C.240
D.205
Solution
Percentage
Let the number be x: x × = 50.
x = .
= 200.
Hence option (a).
A 45 L mixture contains milk and water in the ratio 3 : 2. How much milk must be added to make it 4 : 1?
A.55 L
B.40 L
C.45 L
D.50 L
Solution
Mixture — add milk
Milk = × 45 = 27 L; water = × 45 = 18 L.
Water stays fixed, so = .
27 + x = 72.
x = 45 L — option (c).
23
If the given symbols mean:
'+' means 'divided by', '−' means 'multiplied by', '×' means 'minus', '÷' means 'plus'
Then, find the value of the following expression: 10 ÷ 5 × 12 + 4 − 2 = ?
Pointing to a girl, a woman said, "She is the daughter of my husband's sister's husband." How is the girl related to the woman?
A.Son
B.Niece
C.Brother-in-law
D.Cousin
Solution
Blood relation
The woman's husband's sister is her sister-in-law; that sister’s husband is her brother-in-law.
Their daughter is therefore the daughter of the woman’s sister-in-law.
A sister-in-law’s daughter is one’s niece.
Hence option (b).
Every letter of a cluster moves +2 in the next cluster.
1st letters: D, F, H, J → L; 2nd letters: G, I, K, M → O.
3rd letters: M, O, Q, S → U.
Hence LOU — option (c).
Interchange + and − : the equation becomes 30 − 10 ÷ 2 + 5 × 3.
BODMAS: 10 ÷ 2 = 5 and 5 × 3 = 15.
30 − 5 + 15 = 40 ✓ — it matches the right-hand side.
Hence + and − — option (c).
For I: D ≥ E < B — the signs oppose, so D cannot be compared with G ⇒ I is false.
For II: E < B = C < A < G, a single chain of the same direction.
So E < G is definitely true.
Hence Only II — option (b).
P, Q and R are all siblings — brother, sibling and sister of the same family.
S is the father of R.
Being the father of one sibling, S is the father of all three.
So S is P’s father — option (a).
Each term is the product of the two ideas: 3×2 = 6, 6×3 = 18.
Next multiply by 6: 18 × 6 = 108.
Check the last step: 108 × 18 = 1944 ✓.
Hence 108 — option (a).
Each term = previous × 2 − 1.
9×2−1 = 17, 17×2−1 = 33, 33×2−1 = 65, 65×2−1 = 129 ✓.
Next: 129×2−1 = 258−1.
= 257 — option (a).
Compare SIMPLE (S I M P L E) with LMSIPE position by position.
The new word takes the letters in the order 5, 3, 1, 2, 4, 6.
Apply the same order to TARGET (T A R G E T): E, R, T, A, G, T.
= ERTAGT — option (c).
1st letters: P, S, V — +3 each ⇒ next is Y.
2nd letters: X, V, T — −2 each ⇒ next is R.
3rd letters: K, I, G — −2 each ⇒ next is E.
Hence YRE — option (a).
R−1 = Q, U−1 = T, N−1 = M — every letter moves one step BACK.
Apply to MOON: M−1 = L, O−1 = N.
O−1 = N, N−1 = M.
Hence LNNM — option (b).
Rule: (first × second) × 3.
Check: (5×3)×3 = 45 ✓; (8×2)×3 = 48 ✓.
5 ∗ 4 = (5×4)×3 = 20 × 3.
= 60 — option (d).
Rule: a @ b = a² + b².
Check: 1² + 2² = 5 ✓; 3² + 4² = 9 + 16 = 25 ✓.
4 @ 5 = 16 + 25.
= 41 — option (c).
Milk = × 45 = 27 L; water = × 45 = 18 L.
Water stays fixed, so = .
27 + x = 72.
x = 45 L — option (c).
The woman's husband's sister is her sister-in-law; that sister’s husband is her brother-in-law.
Their daughter is therefore the daughter of the woman’s sister-in-law.
A sister-in-law’s daughter is one’s niece.
Hence option (b).