SSC CGL 16 September 2025 · Shift 2 · General Intelligence & Reasoning — questions with answers · ShikshaSphere
Chapter 53 of 192
16 September 2025 · Shift 2
General Intelligence & Reasoning
25 questions ~25 min readFree
25 questions
A
1
Count consonants between the 1st and 7th letter of EXAMINATION.
A.3
B.4
C.5
D.6
Solution
Consonant count
Write the letters with positions: E(1) X(2) A(3) M(4) I(5) N(6) A(7) T I O N.
Letters strictly between the 1st and 7th: X, A, M, I, N.
Consonants among them: X, M, N.
Count = 3 — option (a).
2
Choose the address that is the same as the one given below.
14/B, Silver Oaks Apartment, Linking Road, Mumbai, Maharashtra - 400050
A.14/B, Silver Oak Apartment, Linking Road, Mumbai, Maharashtra - 400050
Address matching
Compare each option word by word with the given address.
(a) 'Silver Oak' drops the s; (b) 'Apartments' adds an s.
(d) has '41/B' instead of '14/B'.
Only (c) matches exactly — option (c).
3
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series:
LGB PJD TMF XPH ?
A.ASJ
B.ATK
C.BTJ
D.BSJ
Solution
Letter series (+4,+3,+2)
1st letters: L, P, T, X — +4 each ⇒ next is B (cyclic).
2nd letters: G, J, M, P — +3 each ⇒ next is S.
3rd letters: B, D, F, H — +2 each ⇒ next is J.
Hence BSJ — option (d).
4
P is the brother of Q. Q is the daughter of R. How is P related to R?
A.Daughter
B.Son
C.Father
D.Brother
Solution
Blood relation
Q is the daughter of R, so R is Q’s parent.
P is Q’s brother — a male child of the same parents.
So P is a male child of R.
P is R’s son — option (b).
5
Q is the sister of P. P is the brother of R. R is the daughter of S. How is P related to S's mother?
A.Daughter
B.Sister
C.Son
D.Grandson
Solution
Blood relation
R is the daughter of S; P is R’s brother, so P is S’s son.
S’s mother is therefore P’s grandmother.
A grandmother’s male grandchild is a grandson.
P is the grandson of S’s mother — option (d).
6
What comes next:
3, 10, 15, 26, 35, 50, ?
A.63
B.57
C.75
D.59
Solution
Series (n² ± 1)
Compare with squares: 4−1, 9+1, 16−1, 25+1, 36−1, 49+1.
So the terms are n² alternately −1 and +1 for n = 2, 3, 4, 5, 6, 7.
Next: 8² − 1 = 64 − 1.
= 63 — option (a).
7
Choose the group in which all numbers belong to the same category:
A.1, 3, 5, 7
B.2, 5, 8, 11
C.4, 9, 16, 25
D.6, 10, 14, 18
Solution
Number classification
4 = 2², 9 = 3², 16 = 4², 25 = 5².
All four are perfect squares — one clear category.
The other groups are merely arithmetic progressions with mixed types.
Hence option (c).
8
What will come at the place of the question mark?
2, 6, 14, 30, 62, ?
Identify the assumptions that must hold for the statement to be valid, then choose the correct option.Statement: To effectively mitigate climate change, a global carbon tax must be implemented immediately across all industrial sectors.
Assumptions:
I. Current voluntary carbon reduction efforts by individual nations are insufficient to achieve significant mitigation.
II. Placing a financial cost on carbon emissions will alter the economic behavior of industrial sectors.
III. The technology for completely carbon-neutral energy production is already universally affordable and deployed.
A.Only I and II are implicit
B.Only I is implicit
C.All are implicit
D.Only II and III are implicit
Solution
Statement — assumptions
Demanding a tax 'immediately' assumes present voluntary efforts are inadequate — I is implicit.
A carbon TAX only makes sense if a financial cost changes industrial behaviour — II is implicit.
III is NOT assumed: the statement never claims carbon-neutral technology is already affordable everywhere.
Hence Only I and II — option (a).
10
Read the following statement carefully and identify the conclusion that follows.Statement: The government has made it mandatory for all car manufacturers to install airbags in new vehicles.
Conclusions:
I. All new cars will have airbags.
II. Airbags were not being installed in new cars earlier.
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
'Mandatory for all manufacturers' directly means every new car will carry airbags — I follows.
A rule being made mandatory does not prove NO manufacturer installed airbags before — many may have done so voluntarily.
So II is an assumption, not a conclusion.
Hence Only I — option (a).
11
Arrange the following in chronological order (Based on Age/History):
1. Renaissance Period
2. Ancient Greek Civilization
3. Medieval Period
4. Roman Empire
5. Industrialization Era
A.2, 4, 3, 1, 5
B.2, 4, 1, 3, 5
C.5, 1, 4, 2, 3
D.2, 5, 3, 1, 4
Solution
Chronological order
Ancient Greek civilization comes first, followed by the Roman Empire.
After Rome fell came the Medieval Period, then the Renaissance (14th–17th c.).
The Industrialization Era (18th–19th c.) is the latest.
Order 2, 4, 3, 1, 5 — option (a).
12
Choose the correct option to complete the series.
Scalpel : Incise :: Microscope : ?
A.Research
B.Enlarge
C.Discover
D.Analyze
Solution
Analogy — tool : function
A scalpel is a tool whose direct function is to INCISE (cut).
Likewise a microscope’s direct function is to ENLARGE (magnify) tiny objects.
Research, discover and analyze are broader purposes, not the tool’s own action.
Hence option (b).
13
Find the word that does not fit in the series:
Tranquil, Serene, Turbulent, Calm, Peaceful
A.Serene
B.Tranquil
C.Peaceful
D.Turbulent
Solution
Odd word out
Tranquil, serene, calm and peaceful are all synonyms meaning quiet and undisturbed.
Turbulent means violently disturbed or chaotic — the opposite.
It breaks the pattern of meaning.
Hence option (d).
14
Find the unit that does not fit in the series:
Meter, Gram, Second, Ampere, Candela
A.Meter
B.Gram
C.Second
D.Ampere
Solution
SI base units
Metre, second, ampere and candela are all SI BASE units.
The SI base unit of mass is the KILOGRAM, not the gram.
Gram is only a sub-multiple, so it does not fit.
Hence option (b).
15
In each of the following questions, a specific rearrangement of letters has been applied to the first word to form the second. Apply the same rearrangement pattern to the third word and choose the correct answer from the given options.
COMPUTER : OCPMTURE :: GENERATE : ?
A.EGRANEET
B.ETARENEG
C.EGENARET
D.EGNEARET
Solution
Letter rearrangement
Split COMPUTER into pairs: CO MP UT ER → each pair is swapped: OC PM TU RE = OCPMTURE ✓.
Apply the same to GENERATE: GE NE RA TE.
Swap each pair: EG EN AR ET.
= EGENARET — option (c).
16
In each of the following questions, a word is transformed into a combination of letters and numbers following a specific pattern. Analyze the transformation used in the first pair and apply the same rule to find the missing term in the second pair.
HUNT : 159U :: JUMP : ?
A.K58Q
B.K76P
C.K95T
D.K52Q
Solution
Letter–number coding
Read the code position by position: the LAST letter T becomes U — moved one step forward; the first letter H likewise becomes I (printed as 1).
The inner letters turn into digits: U → 5 and N → 9.
For JUMP: J → K, P → Q, and the inner U keeps its code 5 while M gets 8.
Only K58Q keeps U → 5 with the +1 ends — option (a).
17
Which of these words will come last in a dictionary?
A.travel
B.trap
C.tractor
D.trace
Solution
Dictionary order
All start with 'tra'; compare the 4th letter: trace(c), tractor(c), trap(p), travel(v).
trace and tractor come first (c), then trap (p).
v comes last in the alphabet, so travel is last.
Order: trace → tractor → trap → travel — option (a).
18
Comprehension:
In a certain number system there are only two notations to represent numbers: # and $. 0 is represented by # and 1 by $. The subsequent numbers are represented in the following manner: 2 is represented as $#, 3 is represented as $$, 4 is represented as $##, 5 is represented as $#$ and so on.
How will you represent 241 in the given number system?
A.$##$#$##
B.$#$#$#$#
C.$#$##$$$
D.$$$$###$
Solution
Binary with #/$
The system is simply BINARY with $ = 1 and # = 0.
Convert 241 to binary: 241 = 128+64+32+16+1 = 11110001₂.
Replace 1 → $ and 0 → # : $$$$###$.
Hence option (d).
19
Find the odd one out from the given alternatives.
A.Saturn
B.Venus
C.Jupiter
D.Moon
Solution
Odd one out
Saturn, Venus and Jupiter are all PLANETS orbiting the Sun.
The Moon is a natural SATELLITE that orbits the Earth.
It belongs to a different category.
Hence option (d).
20
In a certain code language, FROGS is written as HTQIU. How is VAPOR written in that code?
A.XCRQT
B.XCQRT
C.XCPRT
D.XCQTS
Solution
Coding (+2)
F+2=H, R+2=T, O+2=Q, G+2=I, S+2=U — every letter moves +2.
Apply to VAPOR: V+2=X, A+2=C, P+2=R.
O+2=Q, R+2=T.
Hence XCRQT — option (a).
21
A principal amount of ₹1800 yields a simple interest of ₹180 over a period of 2 years. What is the annual rate of simple interest?
A.8%
B.5%
C.7%
D.6%
Solution
SI — rate
SI = .
180 = = 36R.
R = = 5.
Hence 5% — option (b).
22
If 3 @ 5 = 28, 5 @ 6 = 41, then what is 6 @ 7?
A.49
B.55
C.61
D.65
Solution
Number puzzle (b² + a)
Rule: a @ b = b² + a.
Check: 5² + 3 = 28 ✓; 6² + 5 = 41 ✓.
So 6 @ 7 = 7² + 6 = 49 + 6.
= 55 — option (b).
23
If the given symbols mean: '+' means 'divided by', '−' means 'multiplied by', '×' means 'minus', '÷' means 'plus'. Then, find the value of the following expression: 60+5−4×10÷3 = ?
Write the letters with positions: E(1) X(2) A(3) M(4) I(5) N(6) A(7) T I O N.
Letters strictly between the 1st and 7th: X, A, M, I, N.
Consonants among them: X, M, N.
Count = 3 — option (a).
1st letters: L, P, T, X — +4 each ⇒ next is B (cyclic).
2nd letters: G, J, M, P — +3 each ⇒ next is S.
3rd letters: B, D, F, H — +2 each ⇒ next is J.
Hence BSJ — option (d).
Q is the daughter of R, so R is Q’s parent.
P is Q’s brother — a male child of the same parents.
So P is a male child of R.
P is R’s son — option (b).
R is the daughter of S; P is R’s brother, so P is S’s son.
S’s mother is therefore P’s grandmother.
A grandmother’s male grandchild is a grandson.
P is the grandson of S’s mother — option (d).
Compare with squares: 4−1, 9+1, 16−1, 25+1, 36−1, 49+1.
So the terms are n² alternately −1 and +1 for n = 2, 3, 4, 5, 6, 7.
Next: 8² − 1 = 64 − 1.
= 63 — option (a).
Each term = previous × 2 + 2.
2×2+2 = 6, 6×2+2 = 14, 14×2+2 = 30, 30×2+2 = 62 ✓.
Next: 62×2+2 = 124+2.
= 126 — option (a).
Split COMPUTER into pairs: CO MP UT ER → each pair is swapped: OC PM TU RE = OCPMTURE ✓.
Apply the same to GENERATE: GE NE RA TE.
Swap each pair: EG EN AR ET.
= EGENARET — option (c).
Read the code position by position: the LAST letter T becomes U — moved one step forward; the first letter H likewise becomes I (printed as 1).
The inner letters turn into digits: U → 5 and N → 9.
For JUMP: J → K, P → Q, and the inner U keeps its code 5 while M gets 8.
Only K58Q keeps U → 5 with the +1 ends — option (a).
The system is simply BINARY with $ = 1 and # = 0.
Convert 241 to binary: 241 = 128+64+32+16+1 = 11110001₂.
Replace 1 → $ and 0 → # : $$$$###$.
Hence option (d).
F+2=H, R+2=T, O+2=Q, G+2=I, S+2=U — every letter moves +2.
Apply to VAPOR: V+2=X, A+2=C, P+2=R.
O+2=Q, R+2=T.
Hence XCRQT — option (a).
Rule: a @ b = b² + a.
Check: 5² + 3 = 28 ✓; 6² + 5 = 41 ✓.
So 6 @ 7 = 7² + 6 = 49 + 6.
= 55 — option (b).