SSC GD Constable General Intelligence and Reasoning Syllabus

Find the next term in the alphabet series: A, C, E, G, ?

I. Each letter advances by 2 positions (skip one letter each time).

What are the common patterns to check in any series problem?

Addition/subtraction, multiplication/division, squares, cubes, prime numbers, alternating series, and difference-of-differences.

In Blood Relations, who is your father's brother and your mother's brother called?

Father's brother = paternal uncle (chacha); Mother's brother = maternal uncle (mama).

In Blood Relations, who is your father's sister and your mother's sister?

Father's sister = paternal aunt (bua/phuphi); Mother's sister = maternal aunt (mausi/khala).

What are the children of your uncle or aunt called?

Cousins.

What is the relationship of your son's wife and your daughter's husband to you?

Son's wife = daughter-in-law; Daughter's husband = son-in-law.

If A says 'B is the son of my mother's only son', how is B related to A?

B is A's son (A's mother's only son is A himself, so B is A's son).

What is the recommended technique to solve blood relation puzzles?

Draw a family tree diagram using symbols (e.g., + for male, - for female, single line for couple, double/branch line for siblings/children) to map relations clearly.

In the Direction Sense Test, what are the four cardinal and four ordinal directions?

Cardinal: North, South, East, West. Ordinal (intermediate): North-East, North-West, South-East, South-West.

At sunrise, if you face the rising sun, which direction is on your left and right hand?

Facing East (sunrise): left hand points North, right hand points South, and back faces West.

Which formula gives shortest distance when a path forms a right angle (e.g., go North then East)?

Pythagoras theorem: shortest distance = square root of (a² + b²), where a and b are the two perpendicular legs.

A man walks 3 km North then 4 km East. How far is he from the start?

5 km. Using Pythagoras: square root of (3² + 4²) = square root of 25 = 5.

When you turn right repeatedly, what is the sequence of directions starting from North?

North -> East -> South -> West -> North (right turn = clockwise 90 degrees each time).

What is a Syllogism in logical reasoning?

A form of deductive reasoning where conclusions are drawn from two or more given statements (premises) that are assumed to be true, often solved using Venn diagrams.

In syllogisms, what does the statement 'All A are B' allow you to conclude about A and B?

Every A is contained in B, so 'Some A are B' and 'Some B are A' follow, but NOT 'All B are A'.

In syllogisms, can a definite conclusion be drawn from two negative ('No') premises?

No. Two negative premises do not yield a valid definite conclusion.

What is the rule about 'possibility' conclusions in syllogisms with 'All' statements?

From 'All A are B', the possibility 'Some B are not A' may exist, so 'All B are A' is a possibility (not certain) unless contradicted.

In Statement–Conclusion questions, what must a valid conclusion satisfy?

It must logically and necessarily follow from the given statement alone, without adding outside assumptions or information.

What is the core task in Seating Arrangement problems?

To position people/objects in a row, circle, or around a table based on given clues about their relative positions, then answer questions about who sits where.

In a circular arrangement where all people face the CENTER, how do left and right appear to an observer?

For a person facing the center, their left is the observer's right side and their right is the observer's left side (directions are reversed from the diagram's perspective).

In a circular arrangement, what is the difference when people face inward versus outward?

Facing inward (center): left/right are reversed relative to clockwise direction; facing outward: left/right align differently — outward-facing person's right is clockwise.

What does 'Logical Sequence of Words' require you to do?

Arrange given words in a meaningful, logical order — such as by size, age, process steps, hierarchy, or chronological occurrence.

Arrange logically: 1.Seed 2.Plant 3.Fruit 4.Flower 5.Tree

Seed -> Plant -> Tree -> Flower -> Fruit (1, 2, 5, 4, 3) — the natural growth/life sequence.

Arrange logically: 1.Infant 2.Child 3.Adult 4.Old 5.Youth

Infant -> Child -> Youth -> Adult -> Old (1, 2, 5, 3, 4) — chronological order of human age.

In 'Statement and Course of Action', when should a course of action be followed?

When it is practical, addresses the problem in the statement, and would genuinely improve or resolve the situation — not when it is extreme or impractical.

In 'Statement and Assumptions', what is an assumption?

An assumption is something taken for granted or implied (not stated) in the statement; it must be implicit for the statement to make sense.

What is the key principle in Decision Making questions?

Apply the given rules/conditions strictly to each candidate or case and decide the outcome (select, reject, refer to higher authority) based on which criteria are met or unmet.

What happens to a Mirror Image of an object placed against a vertical mirror?

The image is laterally inverted — left and right are interchanged, while top and bottom remain unchanged.

How is a Water Image (reflection) different from a mirror image?

A water image is an upside-down reflection — top and bottom are interchanged (vertically flipped), while left and right remain unchanged.

Which capital letters look the SAME in their mirror image (vertical mirror)?

Letters symmetric about the vertical axis: A, H, I, M, O, T, U, V, W, X, Y.