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PPT – Tips on Solving Problems Related To Pattern Matching PowerPoint presentation | free to download - id: 884422-OTJlM

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5 TIPS on Cracking Aptitude Questions on Pattern

Matching

Tip 1 Find the sequence of transformations

applied on the figures

- Some common transformations that are followed in

this type of questions are - Rotation A part or whole of the figure may be

rotated by a certain angle. - Select a suitable figure from the answer figures

to replace (?) - (A) (B) (C) (D)

1 2 3

4 5 - In the figures, the shaded leaf rotates by 225

in the clockwise direction while the un-shaded

leaf rotates by 225 in the anti-clockwise

direction. Scanning through the options, we see

that the 3rd figure satisfies these conditions.

Thus, the answer is 3. - Enclosure A specific part or whole of the

figure may be enclosed in some shape. - Sides/ Lines The number of sides/ lines in the

figure may follow a certain progression. - Select a suitable figure from the answer figures

to replace (?) - (A) (B) (C)

(D) 1 2 3

4 5

Tip 1 Find the sequence of transformations

applied on the figures (continued)

- Vertical/ Lateral Inversion The figure may be

inverted vertically, laterally, or both during

successive transformations. - Select a suitable figure from the answer figures

to replace (?)

- (A) (B) (C)

(D) 1 2 3

4 5 - Figure B is the result of vertical inversion of

A. We may, thus, conclude that a figure is

vertically inverted in the subsequent figure.

Thus, the missing figure will be an inverted form

of C. Looking at the answer figures, we see that

figure 1 follows this transformation. Thus, the

answer is 1. - Shifting A specific or whole of the figure

may be shifted in any direction. - Combination A figure may follow more than one

of the above mentioned transformations. - Select a suitable figure from the answer figures

to replace (?)

(A) (B) (C)

(D) 1 2 3

4 5 Except for the dots, the

remaining part of the figure gets inverted and

shifts to the opposite side of the square

boundary. Thus, in the final figure, the sign lt

will be inverted and will shift to the left side

of the square boundary. This will be figure 3

from the answer figures. Thus, the answer will be

3.

Tip 2 Break the figure into smaller parts to

identify the pattern for figure completion

- Following are some of the ways of splitting a

figure into smaller parts - Geometry The figure may be broken into

circles, triangles, quadrilaterals, polygons,

etc. that overlap, touch each other, enclose some

shape(s), or are just parts of the figure. - Question Identify the figure that completes the

pattern.

Figure (A) (B)

(C) (D) Solution Each quarter of

the triangle consists of 2 right angled

triangles. Thus, option D is correct. Question

Identify the figure that completes the pattern.

Figure (A)

(B) (C) (D) Solution

The missing section should have 4 lines. One of

these lines should touch the bottom left of the

square and another should touch the top right.

Only (D) matches these requirements.

Tip 3 Classify the figures on the basis of

sides, geometry or dimensions

- Some of the common classification bases are as

follows - No. of Sides Figures can be classified

depending on the no. of sides they have. - Type of geometry The figures may be classified

as triangles, quadrilaterals, circles, etc. - Dimension You may classify the figures as 2-D

or 3-D figures. - Conjoined, enclosed, or overlapping Some

figures may be complex, consisting of conjoined

shapes, smaller shapes enclosed within larger

ones and/or partially or completely overlapping

shapes, while others might be simple. - Question Group the given figures into 3 classes

using each figure only once. - Solution
- The given figures can be classified on the basis

of - number of sides. Figures 1, 6 and 9 have 3 sides
- each 3,4 and 7 have 4 sides each 2, 5 and 8

have 5 sides each. - Answer 1, 6, 9 3, 4, 7 2, 5, 8.
- Question Group the given figures into 3 classes

using each figure only once. - Solution
- 1, 2 and 7 are simple figures.
- 3, 5 and 9 each have one shape enclosing another

smaller shape. - 4, 6 and 8 each have two shapes each that are

touching each other. - Thus, the given figures can be classified as

Tip 4 Analyze the options one by one and

eliminate choices that do not follow the rule

Question Choose the set of figures which follows

the given rule. Rule Closed figures gradually

become open and open figures gradually become

closed. (A) 1 (B) 2 (C) 3 (D) 4 Solution

The 1st choice can be eliminated since in the

2nd figure itself, the inner circle does not

open, but is replaced by a triangle. In the next

set, the inner square does not open in the 2nd

figure. All the figures in the 3rd option follow

the rule, with the rectangle opening up and the

straight line inside it closing into a rhombus.

Thus, the answer is (C). Question Choose the

set of figures which follows the given

rule. Rule As the circle decreases in size, its

sectors increase in number. (A) 1 (B) 2 (C)

3 (D) 4 Solution In the 1st option, though the

size of the circle decreases, the no. of sectors

remains the same. In the 2nd option, the no. of

sectors in the 4th figure is less than that in

the 3rd. Again in the 3rd choice, the no. of

sectors in the 2nd figure is less than that in

the 3rd. Thus, none of these options follow the

rule. The correct answer is (D) and we may

confirm that in the 4th option, the size of the

circle decreases consistently while the no. of

sectors increases.

Tip 5 Complexity of a figure is determined by

the no. of sides, shapes, sections, etc.

- When a figure is said to become simpler, it means

that one or more of the following happens - Lines If the no. of consistent lines of the

figure continuously decreases, then it may be

concluded that the figure is becoming simpler. In

other words, if the no. of sectors of the figure

keeps decreasing, then it is said to be becoming

simpler. - Shapes If a figure becomes simpler, the no. of

shapes consisting some part or whole of the

figure keeps on decreasing consistently. - Curves The figures may also consist of certain

curves. The extent or length of the figure keeps

decreasing as the figure becomes simpler. - Opening of figure At times, a part or whole of

the figure opens up, thus making it simpler. - Question Choose the set of figures which follows

the given rule. - Rule The series becomes simpler as it proceeds.
- (A) 1 (B) 2 (C) 3 (D) 4
- Solution
- Analyzing the sets one by one, we see
- In the 1st set, the no. of sectors initially

decreases, making - the figure simpler, but then in the 5th figure,

it again - increases. Similarly, in the 2nd set, the

complexity increases - and decreases alternately.
- So none of them follow the rule. The figure in

the - 3rd choice, however, keeps becoming simpler as

the no. of - leaves and lines inside the circle keeps

decreasing. - The correct answer is (C).

Tip 5 Complexity of a figure is determined by

the no. of sides, shapes, sections etc.

(Continued)

Question Choose the set of figures which

follows the given rule. Rule The series becomes

more complex as it proceeds. (A) 1 (B) 2 (C)

3 (D) 4 Solution Analyzing the sets one by

one, we see In the 1st set, the last figure is

simpler than its preceding one in that the curve

forming the vein of the leaf shortens. Considering

the 2nd set, the 4th figure is simpler than the

3rd one since the lower left circle opens up.

So, both these options are eliminated. Now, the

3rd set keeps becoming complex as the no. of

sectors, and then triangles (at the edges), keeps

increasing. Answer (C). Question Choose the

set of figures which follows the given

rule. Rule The series becomes more complex as it

proceeds. (A) 1 (B) 2 (C) 3 (D) 4 Solution

Again, we analyze the options one by one.

The 1st set can be eliminated as it alternates

between becoming simpler and complex owing to the

no. of lines in the figure. The 2nd option keeps

becoming more complex as the no. of lines and

hence, sectors, keeps increasing. Thus, the

correct answer is (B).

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