Q1.Four figures are given. Three of them have an even number of straight sides, while one has an odd number of sides. Which figure is the odd one out?
(a) A regular hexagon
(b) A square
(c) A pentagon
(d) A rectangle
Answer: (c)
Explanation: Hexagon, square, and rectangle each have 6, 4, and 4 sides respectively – all even numbers. The pentagon has 5 sides, an odd number, making it the odd one.
Q2. Three figures are rotations of the same shape; the fourth is a mirror image. Identify the odd figure.
(a) An arrow pointing right
(b) An arrow pointing down
(c) An arrow pointing left
(d) An arrow pointing up but flipped vertically
Answer: (d) Explanation: Options (a), (b), and (c) can be obtained by rotating a single arrow shape 90° increments. Option (d) is the same arrow reflected vertically, not a pure rotation.
Q3. In three figures, the shaded part occupies exactly half of the area; in the fourth figure, the shaded part is less than half. Choose the odd figure. (a) A circle with a vertical diameter shading the left half
(b) A square split by a diagonal, shading the lower triangle
(c) A triangle with a line from the vertex to the midpoint of the base, shading the smaller triangle
(d) A rectangle with a small shaded square in one corner
Answer: (d)
Explanation: In (a), (b), and (c) the shaded region equals exactly 50 % of the total area. In (d) the shaded square is a small fraction (< 50 %), making it the odd one.
Q4. Three figures contain a pair of parallel lines; the fourth figure contains intersecting lines. Which is the odd one?
(a) Two horizontal lines
(b) Two vertical lines
(c) Two diagonal lines sloping in the same direction
(d) One vertical and one horizontal line crossing
Answer: (d)
Explanation: Options (a), (b), and (c) show lines that never meet (parallel). Option (d) shows perpendicular intersecting lines, thus it differs.
Q5. Three figures have rotational symmetry of order 2 (180°); the fourth has only reflective symmetry. Identify the odd figure.
(a) A rectangle
(b) An isosceles triangle
(c) A parallelogram
(d) A regular hexagon
Answer: (b)
Explanation: Rectangle, parallelogram, and regular hexagon look identical after a 180° rotation (order 2). An isosceles triangle only matches itself after a 360° rotation; it has reflective symmetry but not rotational symmetry of order 2.
Q6. Three figures contain exactly one closed curve; the fourth contains two closed curves. Which is the odd one?
(a) A circle
(b) An ellipse (c) A figure‑8 shape
(d) A semicircle
Answer: (c)
Explanation: Circle, ellipse, and semicircle each have a single continuous closed boundary. The figure‑8 consists of two loops, i.e., two closed curves, making it distinct.
Q7. Three figures have all angles equal (equiangular); the fourth does not. Select the odd figure.
(a) A square
(b) A regular pentagon
(c) A rectangle
(d) A scalene triangle
Answer: (d)
Explanation: Square, regular pentagon, and rectangle each have all interior angles equal (90°, 108°, 90° respectively). A scalene triangle has three different angles, thus it is the odd one.
Q8. Three figures are made of straight lines only; the fourth includes a curved line. Identify the odd figure.
(a) A triangle
(b) A trapezoid
(c) A rhombus
(d) A crescent moon shape
Answer: (d)
Explanation: Triangle, trapezoid, and rhombus are polygons composed solely of straight line segments. The crescent moon contains a curved arc, making it different.
Q9. Three figures show a pattern where the number of dots inside equals the number of sides of the outer shape; the fourth does not follow this rule. Which is odd?
(a) A triangle with 3 dots inside
(b) A square with 4 dots inside
(c) A pentagon with 5 dots inside
(d) A hexagon with 4 dots inside
Answer: (d)
Explanation: In (a), (b), and (c) the dot count matches the side count (3, 4, 5). In (d) a hexagon (6 sides) has only 4 dots, breaking the pattern.
Q10. Three figures are symmetric about both horizontal and vertical axes; the fourth is symmetric only about the vertical axis. Choose the odd figure.
(a) A plus sign (+)
(b) A square
(c) A circle
(d) An arrow pointing up
Answer: (d) Explanation: Plus sign, square, and circle are symmetric when flipped horizontally or vertically. An upward arrow is symmetric only about the vertical axis; flipping it horizontally changes its direction, so it is the odd one.
Q11. Three figures have the same area; the fourth has a different area. Identify the odd figure. (a) A 2 × 4 rectangle (area = 8)
(b) A square of side √8 (area = 8)
(c) A triangle with base 4 and height 4 (area = 8)
(d) A 3 × 3 square (area = 9)
Answer: (d)
Explanation: Figures (a), (b), and (c) each have an area of 8 square units. Figure (d) has area 9, making it the odd one.
Q12. Three figures contain exactly one line of symmetry; the fourth contains more than one line of symmetry. Which is odd?
(a) An isosceles triangle
(b) A rectangle
(c) An equilateral triangle
(d) A trapezoid with one pair of parallel sides
Answer: (c)
Explanation: Isosceles triangle, rectangle, and the described trapezoid each have a single line of symmetry. An equilateral triangle has three lines of symmetry, so it differs.
Q13. Three figures are composed of identical smaller shapes repeated; the fourth is made of two different shapes. Identify the odd figure. (a) A large square divided into four equal smaller squares
(b) A large rectangle divided into two equal smaller rectangles
(c) A hexagon formed by six identical equilateral triangles
(d) A pentagon made of a square and a triangle attached
Answer: (d)
Explanation: In (a), (b), and (c) the figure is built from repeating the same basic shape. In (d) the pentagon combines a square and a triangle – two distinct shapes – thus it is the odd one.
Q14. Three figures show a pattern where each successive element rotates 45° clockwise; the fourth element breaks the pattern. Which is odd?
(a) ▲ (pointing up)
(b) ► (pointing right)
(c) ▼ (pointing down)
(d) ◄ (pointing left) but shaded inside
Answer: (d) Explanation: The first three symbols are successive 45° rotations of a triangle (up → right → down). The fourth is a left‑pointing triangle, which would be the next 45° step, but it is shaded, altering the pattern; thus it is the odd one.
Q15. Three figures have all vertices lying on a common circle (cyclic); the fourth does not. Choose the odd figure.
(a) A square
(b) An isosceles trapezoid
(c) A kite with unequal adjacent sides
(d) A scalene triangle
Answer: (c) Explanation: Square, isosceles trapezoid, and any triangle are cyclic (their vertices can lie on a circle). A generic kite with unequal adjacent sides need not be cyclic; therefore it is the odd one.
Q16. Three figures contain a pattern of alternating black and white stripes; the fourth has two adjacent stripes of the same color. Identify the odd figure. (a) Vertical stripes: black, white, black, white
(b) Horizontal stripes: white, black, white, black
(c) Diagonal stripes: black, white, black, white
(d) Vertical stripes: black, black, white, black
Answer: (d)
Explanation: Options (a)–(c) show strict alternation of colors. In (d) two black stripes are adjacent, breaking the alternation pattern.
Q17. Three figures are made up of only right angles; the fourth includes an acute angle. Which is odd?
(a) A rectangle (b) An L‑shape (two rectangles joined)
(c) A stair‑step polygon
(d) A parallelogram with slanted sides
Answer: (d) Explanation: Rectangle, L‑shape, and stair‑step polygon consist exclusively of 90° corners. A slanted parallelogram has acute and obtuse angles, thus it differs.
Q18. Three figures have the same perimeter; the fourth has a different perimeter. Choose the odd figure.
(a) A 2 × 6 rectangle (perimeter = 16)
(b) A 4 × 4 square (perimeter = 16)
(c) A triangle with sides 5, 5, 6 (perimeter = 16)
(d) A 3 × 5 rectangle (perimeter = 16) actually same – need different: let’s adjust
Let’s rewrite:
(a) 2 × 6 rectangle (P=16)
(b) 4 × 4 square (P=16)
(c) Triangle 5,5,6 (P=16)
(d) 3 × 5 rectangle (P=16) still same. Change (d) to 1 × 7 rectangle (P=16) still same. Need different: maybe a pentagon with sides 3,3,3,3,4 (P=16) still same. Let’s instead give different:
(a) 2 × 6 rectangle (P=16)
(b) 4 × 4 square (P=16)
(c) Triangle 4,6,6 (P=16)
(d) 3 × 5 rectangle (P=16) still same. Hmm. Let’s pick a different perimeter:
(a) 2 × 6 rectangle (P=16)
(b) 4 × 4 square (P=16)
(c) Triangle 5,5,6 (P=16)
(d) 3 × 4 rectangle (P=14)
Answer: (d)
Explanation: Figures (a), (b), and (c) each have a perimeter of 16 units. Figure (d) has perimeter 14 units, making it the odd one.
Q19. Three figures contain a shape that is rotated 90° clockwise relative to the previous one; the fourth figure is rotated 180°. Identify the odd figure.
(a) ►
(b) ▼ (c) ◄
(d) ► (same as first)
Answer: (d)
Explanation: Starting from ► (right), a 90° clockwise rotation gives ▼ (down), another gives ◄ (left). The fourth should be ▲ (up) for a continued 90° step, but it repeats ►, which is equivalent to a 180° rotation from ▼, breaking the 90° pattern.
Q20. Three figures are composed of a single continuous line without lifting the pen (unicursal); the fourth requires lifting the pen at least once. Which is odd?
(a) A circle
(b) A figure‑8 (c) A simple “S” shape (d) Two separate squares
Answer: (d)
Explanation: Circle, figure‑8, and an “S” can be drawn in one stroke without lifting the pen. Two separate squares are disconnected shapes, necessitating at least one pen lift, thus they differ.
Q21. Three figures have a line of symmetry that passes through the center of the figure; the fourth’s line of symmetry does not pass through the center. Choose the odd figure.
(a) An isosceles triangle (symmetry line from vertex to base midpoint)
(b) A rectangle (symmetry lines through center)
(c) An ellipse (symmetry lines through center)
(d) A right‑angled triangle with symmetry line from the right angle to hypotenuse midpoint (does not go through centroid)
Answer: (d)
Explanation: In (a), (b), and (c) the symmetry line(s) go through the geometric center. In (d) the altitude from the right angle to the hypotenuse does not pass through the triangle’s center, making it the odd one.
Q22. Three figures show a pattern where the number of dots increases by 2 each step; the fourth does not follow this increment. Which is odd? (a) 2 dots
(b) 4 dots
(c) 6 dots
(d) 9 dots
Answer: (d)
Explanation: The sequence 2, 4, 6 increases by 2 each time. The next term should be 8, but option (d) shows 9 dots, breaking the pattern.
Q23. Three figures are made of congruent parts arranged symmetrically; the fourth has parts of different sizes. Identify the odd figure.
(a) A square divided into four equal smaller squares
(b) A circle divided into six equal sectors (c) A hexagon formed by six identical equilateral triangles
(d) A rectangle divided into two unequal rectangles
Answer: (d) Explanation: Options (a), (b), and (c) consist of identical pieces arranged symmetrically. In (d) the two rectangles differ in size, so the figure is not built from congruent parts.
Q24. Three figures have the same number of lines of symmetry; the fourth has a different number. Choose the odd figure.
(a) An equilateral triangle (3 lines)
(b) A square (4 lines)
(c) A regular hexagon (6 lines)
(d) A circle (infinite lines)
Answer: (d)
Explanation: While (a), (b), and (c) each have a finite, specific count of symmetry lines (3, 4, 6), a circle possesses infinitely many lines of symmetry, making it distinct.
Q25. Three figures are oriented such that a specific interior angle measures 60°; the fourth has a different interior angle. Identify the odd figure.
(a) An equilateral triangle (each angle 60°)
(b) A regular hexagon (each interior angle 120°, but the central angle is 60°) – maybe confusing. Let’s pick simpler:
(a) Equilateral triangle (60°)
(b) A rhombus with acute angle 60°
(c) A regular hexagon (each interior angle 120°) not 60°. Hmm. Let’s adjust:
Better: (a) Equilateral triangle (60°)
(b) A regular hexagon can be divided into 6 equilateral triangles, each with 60° angle at center. (c) A rhombus with acute angle 60°
(d) A square (90°)
Answer: (d)
Explanation: In (a), (b), and (c) the figure contains a 60° angle (either as an interior angle of an equilateral triangle, the acute angle of a rhombus, or the central angle of a regular hexagon). The square’s interior angles are all 90°, lacking a 60° angle, thus it is the odd one.
