CEED 2023 Part A Solution

There are 5 walls and each needs to be watched by 3 guards are total 5*3=15 walls that needs to be watched.

Now 1 guard can watch 2 walls so 15 walls can be watched by 15/2=7.5 guards.

Since we cannot have fractional guards, we need to round up to the next whole number which is 8.

Second Method:
Assigning three guards to each wall. One adjacent guard post will have one guard, while the other will have two guards to fulfil the requirement. By visually mapping this arrangement on paper and counting the number of guards needed, it becomes clear that a total of 8 guards are required.

There are many possible ways that 10 can be moved to x position.
Here is one possible way.

In such problems issue is multiple shapes are inscribed into 1 shape, so one way to approach this problem is to counting shapes based on no of other shapes inscribed inside it.

Pick single triangles first, then triangles with other triangles inside and so on as shown in below image.

Lets assume the side of large cube of 6 unit size. Now when it is cut at 1/6 and 1/2 from any of one side. It gets divided into 3 parts in ratio 1:2:3.

When it will get cut from all three dimension finally we will get 27 parts (3x3x3, as it is getting divided into 3 parts from each dimension)

Now, question is how many cubes are there in resulting parts?

We know each part is getting divided further into 3 further parts after cut in each dimension. Possible combination can be calculated using by multiplying each no, with in same ratio three time.and we will get dimension of resulting part as - “1x1x1, 2x1x1, 3x1x1, 1x2x1, 2x2x1, 3x2x1, 1x3x1, 2x3x1, 3x3x1, 1x1x2, 2x1x2, 3x1x2, 1x2x2, 2x2x2, 3x2x2, 1x3x2, 2x3x2, 3x3x2, 1x1x3, 2x1x3, 3x1x3, 1x2x3, 2x2x3, 3x2x3, 1x3x3, 2x3x3, 3x3x3”

But we don't need to calculate each dimension, if you clearly observe you will know that only 3 combination are possible which can ,make a cube which are 1x1x1. 2x2x2 and 3x3x3. hence resulting parts will have 3 cubes

Each edge is extended of the word is extruded in 3d surface by some length and creating a surface. So to calculate total no of surface we can count no of Edges + 1 Top surface of letter visible in front view.

In such question focus on shape of end points for quick observations.

Calculate the Radius of Pin using Trigonometric ratio, then divide circumference of plate with circumference of Pin. Here we have shown complete calculation but in exam you can directly divide radius of Plate with Pin as “2 x π” cancels out each other.

In such questions, You need to draw the sketch of object quickly in-order to visualise final product and try to find shapes given in option. Here is how you can do it.

Option B is true because the information provided includes scales related to space (milestones on highways) and time (heart beats per minute and clock hand rotation per minute).

Option C is true because the phrases describe structures consisting of a series of elements arranged in a repetitive manner. Highways have milestones stretched in a continuous series, and a building is constructed with a series of beams and nodes.

Since in option A and B both the tips of straw are outside including joint so pressure wont be created and option A and B will not be able to draw any liquid.

Now some of you must be thinking how is option C correct. to understand this, lets see the below example first.

In the same way when pressure is applied on tip X, straw suction pressure will be created will will try to pull air from tip Y but atmospheric pressure will counter balance it until it reach point O and we will be able to draw the liquid. Since it is not told in question that how much liquid needs to be draw so we will consider small quantity of liquid (until point O) drawn is also a correct option and hence option C is correct.

And in option D it is clear that we can draw liquid as one end is inside liquid and other is outside.

We know motif has equal shaped and divided into equal angles i.e, 90 Degrees.

So with every 45 Degree rotation motif will come at the empty space between original mortif.

Here is how final shapes will look. (Copied motif shape is made darker)

It is important for designer to interview everyone.

A. Delivery personnel to understand their experience using the app and gather suggestions for improvement.

B. Restaurant employees to learn about their interaction with the app and identify opportunities to streamline the workflow.

C. Customer support employees to gain insights into common issues and identify areas for improvement in customer support features.

D. Existing users to understand their experience, satisfaction, and specific feature preferences, guiding the redesign process.

By rotate or mirror operation it is possible to make original shape from option A, B & D but option C is not possible

Option A and C are not possible. In option A complete circular motion of disc is not possible and bar will stuck at the hinged portion as shown by dotted figure below. In option C, it wont be possible for pink bar to rotate as it is held inside the rectangular region by green guide.

Option B is possible as it clearly shows the linear motion of pink bar and has not hinderance Option D is also difficult in real scenario, It can be possible if there is some tolerance given within green guide and bar which can allow the movement. that is why option D is not compulsory.

Here is the animation of how toy will move and path pencil follows, You will be able to notice only option A and D are possible for this. which make B and C are never possible path hence that is our answer

For this type of question where it is required to find rotated view of the given object/shape it is important to first understand the question figure.
The question figure is a 3D object made up of basic form (S) shown if figure 1. This form is repeated 3 times.
We will start with comparing the basic form with the options given.
Option A & D- All the three curves follow the basic form.
Option B & C- One of the curves doesn’t follow the basic form.

Difficulty here is directly related to the distance and time taken by the user to press key.
1st - Orange would be easiest to reach as it is nearest to location “O”
2nd - Here the confusion is between Red and Green key as their distance looks same but in actually difficulty to press “red” will be less as its size of it is larger than of “Green”. This is also stated in Fitt’s Law of UX.
3rd : Green will be next as it the next nearest key.
4th : Blue would be the most difficult as it is farthest from all.

Fitts’ s law says that the time to reach Target A is shorter than the time to reach any of the other targets. Although Targets A and B have the same size, the distance from cursor to A (D1) is shorter than the distance to B (D2), so movement to A will be faster. Target C is placed at the same distance (D1) from the cursor as Target A, but it’s smaller, so it will take longer to move the cursor to it than to A.

Source : https://www.nngroup.com/articles/fitts-law/

In such question instead of finding matching figure you should try to eliminate options that are not possible.
Look at the 4 figures and see what is the difference between them. At first glance I saw that Figure C and shape extruded but all other has that shape inward, immediately I matched it with original shape and found that Figure C is wrong.
Then I again matched one shape which is two bottom lines amount figure A, B and D. and found that distance of line in figure D is less compare to other two. Match it with original figure I found D is only correct option

The material that would make the furniture the lightest for the same design is option A, Particle Board. Density plays a significant role in determining the weight of a material. By observing the images provided, we can analyse the density of each material.
Option B, appears to be tightly packed, suggesting that it is relatively dense. Similarly, option C, Teak wood, consists of wood fibres that are also tightly packed, indicating a higher density.
Comparing options A and D, Particle Board seems to be less dense. Particle Board is composed of particles that are glued together, potentially leaving some space inside the material. This characteristic implies a lower density compared to Plywood, which typically consists of several layers of wood glued together.
Therefore, based on the visual analysis of the images, option A, Particle Board, is likely to be the lightest material among the given choices when considering the same design for furniture.

Let's analyse each option:

Option A - (10,8) : Value of monkeys(y=8) is greater than 7 so it is possible than all escaped animations can be monkeys only. This pair is not possible.
Option B - (7,2) : Value of monkeys(y=2) are less than 7 so in order to escape 7 animals at least 5 baboon has to escape which is more than 1. This pair is possible.
Option C - (25,6) : Value of monkeys(y=6) are less than 7 so in order to escape 7 animals at least 1 baboon has to escape which is equal to 1. This pair is possible.
Option D - (12,4) : Value of monkeys(y=4) are less than 7 so in order to escape 7 animals at least 3 baboon has to escape which is more than 1. This pair is possible.

So A (10,8) does not represent the possible pair

Pablo Picasso's blue period, which occurred from 1901 to 1904, was characterised by predominantly cool and somber blue tones. The colours chosen during this period were primarily from one part of the colour wheel, emphasising a tonality of blue.
A simple analogous combination of colours refers to the use of adjacent colours on the colour wheel. Analogous colours are those that are next to each other, sharing similar hues. In Picasso's blue period, he predominantly used shades of blue, which are analogous to each other. The presence of other colours, such as yellowish green, bluish green, and bluish purple, can be seen as subtle variations within the analogous colour scheme.

If you observe closely, you will notice that the top fold (1) will be turned when the paper is unwrapped and the 1st portion won’t be visible. So options C and D are not possible.
Now the content of 2nd fold will be aligned at the bottom which as shown in figure A. So A is the correct answer

Since the three tasks involve different movements and body postures, it is important to design the kitchen in a way that allows the user to perform each task with minimal strain on the body.
For washing utensils, the ideal height would be at or slightly below waist level, to avoid bending the back excessively.
For rolling chapatis, the ideal height would be slightly above the waist level, so that the user can comfortably lean forward and apply pressure while rolling the dough.
For chopping vegetables, the ideal height would be at or slightly above the countertop level, to allow the user to maintain a comfortable standing posture while chopping.
Hence, having all three tasks at different heights will allow the user to perform each task in a comfortable and ergonomic manner.

When scaling the blue image to the red one, the mechanism used must maintain a proportional relationship between the lengths of the bars. This relationship implies that as the blue point moves, the red point should move at a relatively greater distance in a fixed ratio.
Let’s analyse each mechanism one by one:
Option A and B are not possible because the distance between the blue and red points remains fixed. Thus magnification is not possible.
Option C is a possible mechanism because the position of both the red and blue points are relative to each other, and the motion of both points is related to each other.
(Mechanism user here is called Pantograph mechanism)
Option D is not possible because both the blue and red points are hinged to another bar, and they must be connected to transmit the same motion.

The total time travelled by clock is 90 mins
Let’s represent anti-clockwise as - Degree and find out how much both dial rotation
Dail P : Moves -45 Degrees in 30 mins
Then, In 90 min it will move = -135 Degree
Dail Q : Moves 90 Degrees in 15 mins
Then, in 90 mins it will move = 540 Degree [or 360 +180 Degree]
Now if we check the rotation, we will find option C is correct answer

In order to stack chairs one above the other, it is important that the base or sitting area have a narrower width than the distance between the legs, allowing the chairs to fit easily and securely on top of each other.
Among the figures provided, only figure C appears to have a base that is narrower than the distance between the legs, making it the correct answer.

Option A : Represents the combination of egg and sugar as both are used as separate element in cake. Two small hexagons that represent egg and sugar individually, while the larger hexagon represents the cake
Option B does not represent anything, but we will still check other options.
Option C is fitting for rock, paper, and scissors as all three are unrelated to each other.
Option D represents the progression from a seed to a tree and to a fruit with the use of three shapes one inside other.

Since size is equal to age, meaning eldest(Usha) has the largest size sitting at the banyan tree which is it centre. Only figure one shows this presentation which has largest circle in centre. So it is clear that Figure A is correct answer,

First of all this question is not to judge if you remember the painting creator, time, etc. It is an observation based question.
Each row have two paintings featuring same character, Image 1 and 3 have same person, Image 6 and 8 has same character. Also it is creating a grid, so if you observe clearly you will find that Option C is matching with Image 14 and that is the right answer.

The lever nutcracker (Option C) requires the least amount of pressure to break the nut because it uses a design that makes it easier for the user to apply force.
In other options like a tong or scissor-shaped plier, the user has to rely solely on their strength to break the nut, which can be more difficult and require more pressure. The lever nutcracker multiplies the force applied to the nut, which means the user can apply less effort but still achieve the desired result.

To solve this we simply need understand mechanism of leg at point P. In order to get up Point P need to to rotate around point 0 and to do so it will move little forward and in upward direction.
Only option B represents this motion. Hence that is our answer.

In such questions you need to find pattern in the shapes, usually either row or column has some pattern. Here is also same case exists, sum of edges of shapes inside each row and column is same.
Edges in 1st Column = 6+5+3+0 = 14
Edges in 2nd Column = 4+4+3+3 = 14
Edges in 3rd Column = 4+0+5+5 = 14
Edges in 4th Column = 0+?+3+6 = 9
In order to make it 14 we need 5 more edges which option C has.

It is visible that side (x) towards which cylinder P is cut by Q is short in length than side (y).
Hence Option C and D are not possible as they represent side X are larger.
Now Top part(Circle) of cylinder P is perpendicular to its side and will remain straight when unfolded. So option B is the correct answer.

Simply reverse the patter from folding to unfolding. You can do it im mind or quickly by making rough sketch also.

Answer is comprehensible

As cone rotates the circular plane (circumference) of cone base will some out and make extra circle on the right side. Make shape shown in option B which is the correct answer.

Mirror shown here is a concave mirror which forms inverted image which is presented in option A correctly.

Instead of directly matching all answers with main Image. FInd difference in options and then match it with Main image.
1st Difference - strips at the bottom part is different in option A which is not matching the main image. Elimination option A
2nd difference - Number 8 is different in option B which is not matching with main image. Elimination option B
3rd Difference - Shape of circles in option D is not matching. Elimination option D
Left option is C which is out answer.

Observe any of the line and check if it if following the pattern of passing from down or up.