SSC CGL Mock – Tier II Paper I Mock Test 08 – Section I · Part B · Reasoning & General Intelligence – 27 questions, subject: Full Mock Tests. Every question has the correct answer with a one-line explanation; tap "Show Answer". Free practice for TNPSC, UPSC, SSC, Bank and RRB exams – Shanmugam IAS Academy, Coimbatore.
Each letter is replaced by its opposite letter (A↔Z, B↔Y …; positions add to 27): WDAG → DWZT; ILNF → ROMU.
3.
ClassificationThree of Aluminium, Zinc, Phosphorus, Tin form a group. Which one stays out?
Correct Answer:
C [Phosphorus]
Explanation:
Zinc, Tin, Aluminium are metals; Phosphorus is not – it is a non-metal.
4.
SeriesWhich number fits? 48, 63, ?, 99, 120, 143
Correct Answer:
D [80]
Explanation:
Rule: (n²) − 1 for n = 7, 8, ….
5.
SeriesWhat comes next: DDNO, GIQP, JNTQ, MSWR, ?
Correct Answer:
C [PXZS]
Explanation:
Each position moves on by a fixed step (letter 1: +3; letter 2: +5; letter 3: +3; letter 4: +1): DDNO, GIQP, JNTQ, MSWR, PXZS.
6.
Coding–DecodingUsing 'ni ka su' means 'roads long clean'; 'da tu ni' means 'wide and clean'; 'ni ka da' means 'wide clean long', decode 'long'.
Correct Answer:
A [ka]
Explanation:
'long' occurs in the first and third sentences; the code common to them and absent from the other sentence is ka.
7.
Coding–DecodingCode: WINTER = XKQXJX. Then GUITAR = ?
Correct Answer:
D [HWLXFX]
Explanation:
Rule: 1st letter +1, 2nd +2, 3rd +3, and so on.
8.
Mathematical OperationsEach of +, −, ×, ÷ is used once in 20 ∗ 11 ∗ 5 ∗ 22 ∗ 24 = 42. Which order of signs fills the ∗ correctly?
Correct Answer:
B [× ÷ + −]
Explanation:
20 × 11 ÷ 5 + 22 − 24 = 42 (BODMAS); it is the only arrangement of the four signs that works.
9.
Mathematical OperationsAs printed, 2 ÷ 20 + 5 × 8 − 10 = 24 is false. Swapping which pair of signs makes it correct?
Correct Answer:
A [+ and ÷]
Explanation:
Interchanging + and ÷: 2 + 20 ÷ 5 × 8 − 10 = 24; no other interchange works.
10.
Blood RelationsRead: Revathi is the mother of Kamala. Rekha is the daughter of Revathi. Vikram is the son of Rekha. Kamala is the wife of Rahul. Vikram is related to Rahul as?
Correct Answer:
D [Nephew]
Explanation:
Link the statements: Vikram (son of Rekha) → Rekha (daughter of Revathi) → Revathi (mother of Kamala) → Kamala (wife of Rahul); so Vikram is the nephew of Rahul.
11.
Direction SenseStarting towards North-West, Manoj makes these turns: 90° anticlockwise, then 180° clockwise, then 180° anticlockwise, then 180° clockwise. Where does Manoj face at the end?
Correct Answer:
C [North-East]
Explanation:
Take clockwise as + and anticlockwise as −: net turn = −90 + 180 − 180 + 180 = 90°, i.e.
12.
Order & RankingSix students Sudha, Bina, Lokesh, Tara, Nikhil and Balu are all of different heights. Balu is taller than Lokesh. Tara is taller than Sudha. Bina is taller than Nikhil. Sudha is taller than Balu. Nikhil is taller than Tara. Who is the second tallest?
Correct Answer:
B [Nikhil]
Explanation:
Only one order fits all the clues.
13.
Syllogism1. All poets are artists. 2. All artists are dancers. 3. All dancers are actors. Conclusions to test: I. No poets are dancers. II. No actors are dancers. III. Some actors are dancers.
Correct Answer:
C [Only III follows]
Explanation:
I does not follow; II does not follow; III follows.
14.
SyllogismGiven: 1. All lions are tigers. 2. All tigers are cats. 3. No cats are wolves. Decide which of the following follow: I. No lions are wolves. II. All wolves are cats. III. No cats are tigers.
Correct Answer:
A [Only I follows]
Explanation:
I follows; II does not follow; III does not follow.
15.
InequalityIn the statement A ≥ G < S ≥ D > Z < E, which conclusions follow? I. E < A II. A < Z
Correct Answer:
D [Neither conclusion I nor II follows]
Explanation:
I: E < A does not follow (not definitely true); II: A < Z does not follow (not definitely true).
16.
Directions (Q 47–49): Study the information and answer the questions that follow. Five friends Lakshmi, Gowri, Pranav, Gautam and Hari sit around a circular table, all facing the centre (a person's left neighbour is the next person clockwise). Each of them teaches a different subject out of Botany, Economics, Zoology, Physics and Chemistry. (1) Pranav sits to the immediate left of Gowri. (2) The person who teaches chemistry sits to the immediate right of Gowri. (3) The person who teaches botany sits to the immediate right of Hari. (4) The person who teaches physics sits to the immediate left of Lakshmi. (5) Gowri sits second to the left of Gautam. (6) The person who teaches zoology sits to the immediate right of Gautam.
PuzzlePranav's second neighbour on the right is who?
Correct Answer:
C [Lakshmi]
Explanation:
The clues allow only one arrangement.
17.
(Use the directions above – Q 47–49) PuzzlePhysics – who?
Correct Answer:
D [Gowri]
Explanation:
The clues allow only one arrangement.
18.
(Use the directions above – Q 47–49) PuzzleIdentify Hari's subject.
Correct Answer:
B [Zoology]
Explanation:
The clues allow only one arrangement.
19.
Data SufficiencyQuestion: Five friends Fatima, Nisha, Esha, Nalini and Vikram sit in a straight row, all facing north ('left' means towards the west end). Fatima is not a neighbour of Vikram. Fatima is not a neighbour of Esha. Exactly 2 persons sit between Nalini and Vikram. Who sits at the extreme right end? Statements: I. Nalini does not sit at either end. Esha sits somewhere to the left of Fatima. II. Fatima sits second to the right of Nisha. Decide which statement(s) are sufficient to answer the question.
Correct Answer:
B [Statement II alone is sufficient, but statement I alone is not sufficient.]
Explanation:
II fixes the answer; I leaves more than one possibility.
20.
Data SufficiencyQuestion: Five friends J, K, L, M and N sit in a straight row, all facing north ('left' means towards the west end). Only one person sits between J and K. N sits immediately to the left of K. K sits immediately to the left of M. Who sits at the extreme left end? Statements: I. L sits somewhere to the left of N. II. Only one person sits between M and N. N does not sit at either end. Decide which statement(s) are sufficient to answer the question.
Correct Answer:
A [Statement I alone is sufficient, but statement II alone is not sufficient.]
Explanation:
I fixes the answer; II leaves more than one possibility.
21.
Critical ReasoningSix friends S, T, U, V, W and X sit in a straight row, all facing north ('left' means towards the west end). T is not a neighbour of U. W is not a neighbour of X. T sits third to the right of X. S is not a neighbour of W. S sits immediately to the left of T. Which of the following MUST be true?
Correct Answer:
D [Only one person sits between S and X.]
Explanation:
The clues allow 7 arrangements; 'Only one person sits between S and X' holds in all of them, while each other option fails in at least one (e.g.
Paper FoldingHow many holes will the opened sheet have? Folds: left half over the right half; bottom half up over the top half; along the diagonal (top-left part over); 1 hole is punched.
Correct Answer:
D [8]
Explanation:
Each fold doubles the layers, so three folds give 2³ = 8 layers; 1 punch × 8 layers = 8 holes (no hole lies on a fold line).
26.
Counting FiguresConsider the given drawing, 4 × 4 grid, one cell crossed. How many squares can be seen in all?
Correct Answer:
B [30]
Explanation:
Count the squares of every size, smallest first, then those made of 2, 3 … parts: 30 in all.
27.
Dice & CubesA cube is made from the net H·· / LG· / ·IK / ··J. Which face faces away from G?
Correct Answer:
B [J]
Explanation:
In a net, faces with exactly one face between them in a straight line are opposite: G–J, H–I, K–L.
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