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Except 27, numbers in all other options are the perfect squares only.

27 is a perfect cube and not the square.

1) 27 = (3)³

2) 81 = (9)²

3) 256 = (16)²

4) 100 = (10)²

Hence, 27 is correct.

Except Pondicherry, all other options are the names of states.

Pondicherry is a Union Territory.

Hence, Pondicherry is correct.

All except Architect – Design pair represent item and material from which it is made.

Furniture is made up of wood.

Shoes are made up of leather

Clothes are made up of fiber

Architect's profession is to design. 

Hence, "Architect – Design" is the correct answer.

Cotton, flax, jute, hemp, modal and even banana and bamboo fibre are all used in clothing. Piña (pineapple fibre) and ramie are also fibres used in clothing, generally with a blend of other fibres such as cotton. Nettles have also been used to make a fibre and fabric very similar to hemp or flax. 

459, 306, 470 all are multiples of 51 whereas 470 is not.

1) 459 → 51 ÷ 9 = 459

2) 306 → 51 ÷ 6 = 306

3) 470 → Not divisible by 51

4) 153 → 51 ÷ 3 = 153

The logic is:

Nokia, Samsung and Apple are names of brands that sell electronic gadgets.

Similarly,

OnePlus too is the name of a brand that sells electronic gadgets.

Hence, ‘OnePlus’ is the correct answer.

Emperor Ashoka, King Bindusara and Chandragupta Maurya belonged to "Mauryan dynasty".

Whereas, King Ajatashatru belonged to "Haryanka dynasty".

Hence, the correct answer is King Ajatashatru 

Except for weapon and arms, both the words in other pairs are opposite of each other.

Hence, 'weapons and arms' is different from the other three options.

The logic followed is:

The first number is exactly divisible by the second number.

All the options except for option (3), the first number is exactly divisible by the second number.

Option 1: 9 - 3

9 is exactly divisible by 3.

Option 2: 8 - 4

8 is exactly divisible by 4.

Option 3: 10 - 3

10 is not exactly divisible by 3.

Option 4: 6 - 6

6 is exactly divisible by 6.

Hence, the correct answer is "10 - 3".

Bear, Bat, and Dolphin give birth to live young as all other mammals do.

But;

Penguins lay eggs.

Hence, "Penguin" is the correct answer.

Here the logic is:

Except music, all others are musical instruments used to accompany vocal and instrumental music but music is not a musical instrument it is the outcome of musical instruments.

Thus, music is different from other options.

Hence, 'music' is the correct answer. 

The logic is as:

836654 → 8 + 3 + 6 + 6 + 5 + 4 = 32

836475 → 8 + 3 + 6 + 4 + 7 + 5 = 33

836432 → 8 + 3 + 6 + 4 + 3 + 2 = 26

836986 → 8 + 3 + 6 + 9 + 8 + 6 = 40

Here the sum of the digits of all the given options except option (2) is even.

Hence, option (2) is odd one out.

Eyes, ears, and chin are those parts of the body which are available to humans since their birth.

However, tooth is acquired or formed in the growth stage of humans.

Hence, tooth is the correct answer.

The Logic here is as follows:

Sharki, Pablo, and Norte are the types of Strong Winds.

Whereas, Pali is a Buddhist Language.

Hence, the correct answer is "Pali".

1. Pali: Pali is a Middle Indo-Aryan liturgical language native to the Indian subcontinent. It is widely studied because it is the language of Tipiṭaka and is the sacred language of Buddhism.

2. Sharki: The Sharqi or Sharki is a wind in the Middle East that comes from the south and southeast. The winds are dry and dusty, with occasional gusts up to 80 km/hour (50 miles per hour) and often kick up violent sand and dust storms that can carry sand a few thousand meters high.

3. Pablo: Pablo was the strongest tropical cyclone on record to ever affect the southern Filipino island of Mindanao (Philippines), making landfall as a Category 5 super typhoon with winds of 175 mph (280 km/h).

4. Norte: The Norte is a strong cold north wind that blows in from the northeast in Mexico along the Gulf of Mexico.

The logic follows here is;

Sum of smaller numbers = Larger Number

1) In 57, 23, 34

23 + 34 = 57

2) In 25, 63, 28

25 + 28 = 53 ≠ 63

3) In 21, 27, 48

21 + 27 = 48

4) In 15, 33,18

15 + 18 = 33

Hence, "25, 63, 28" is the correct answer.

The logic followed here is:

All Elephant, Whale, and Rabbit are Mammals.

Whereas, 

Ostrich is a Bird.

Hence, ostrich is the odd one.

Mammals → They are any member of the group of vertebrate animals in which the young are nourished with milk from special mammary glands of the mother. 

Note: This is previous year question and given answer as per the official answer key basis of this question.

The logic followed is:

Option (1): Flute: The flute is a family of musical instruments in the woodwind group. 

Option (2): Clarinet: The clarinet is a family of woodwind instruments.

Option (3): Saxophone: The saxophone is a type of single-reed woodwind instrument.

Option (4): Conga: The conga, also known as tumbadora, is a tall, narrow, single-headed drum from Cuba.

Here, we can see that except Conga, all are woodwind instrument.

Hence, Option (4) is correct.

In the given question,

Zinc, copper, iron are elements, whereas brass is an alloy of copper and zinc.

Therefore, Option 4 is the correct answer.

Given: (165, 16, 91)

The logic followed here is:

(165, 16, 91) → \(\sqrt{165 + 91} = \sqrt{256} = 16\)

By checking options,

(1) (99, 14, 97) → \(\sqrt{99 + 97} = \sqrt{196} = 14\)

(2) (76, 11, 45) → \(\sqrt{76 + 45} = \sqrt{121} = 11\)

(3) (85, 13, 59) → \(\sqrt{85 + 59} = \sqrt{144} = 12 \neq 13\)

(4) (57, 9, 24) → \(\sqrt{57 + 24} = \sqrt{81} = 9\)

Hence, (85, 13, 59) is the correct answer.

We have to find the option that does not follow the same logic that is given in the question.

Except Lady finer, all other options can be modified through the process of genetic engineering.

NOTE:

Genetic Engineering - Genetic engineering, also called genetic modification or genetic manipulation, is the direct manipulation of an organism's genes using biotechnology.

Hence, Lady Finger is correct.

The logic is:

(4, 2, 1) → 4 + 2 = 1 × 6 ⇒ 6 = 6

Similarly,

1. (2, 3, 5) → 2 + 3 = 5 × 6 ⇒ 5 ≠ 30

2. (64, 6, 4) → 64 + 6 = 4 × 6 ⇒ 70 ≠ 24

3. (3, 2, 1) → 3 + 2 = 1 × 6 ⇒ 5 ≠ 6

4. (20, 10, 5) → 20 + 10 = 5 × 6 ⇒ 30 = 30

Hence, ‘(20, 10, 5)’ is the correct answer.

The description is as follows:

Hence, ‘Grunt’ is the odd one out.

The logic is:

1. 6394 → 6 + 3 + 9 + 4 = 22

2. 5378 → 5 + 3 + 7 + 8 = 23

3. 8276 → 8 + 2 + 7 + 6 = 23

4. 7286 → 7 + 2 + 8 + 6 = 23

Hence, ‘6394’ is the odd one out. 

Newton is the unit of Force, not Pressure.

Hence, "Pressure : Newton" is the correct answer.

The logic is:

1. 7 - 50 → 7 × 7 + 1 = 49 + 1 = 50

2. 3 - 22 → 3 × 7 + 1 = 21 + 1 = 22

3. 9 - 65 → 9 × 7 + 1 = 63 + 1 = 64 ≠ 65

4. 1 - 8 → 1 × 7 + 1 = 7 + 1 = 8

Hence, ‘9 - 65’ is the odd one out. 

(i) hj1t4x7t2vuwa

(ii) hj1t4x7t2vuwa

(iii) hj1t4x7t2vuwa

(iv) hj1t4x7t2uvwa

Except (iv), all other options containing the alphabet and numbers are the same. i.e. hj1t4x7t2vuwa

In (iv), the pair 'vu' is written as 'uv'. i.e. hj1t4x7t2uvwa

Hence, hj1t4x7t2uvwa is correct.

All options except 'hj1t4x7t2uvwa' have the same combination of letters and numbers 'hj1t4x7t2vuwa'.

Hence, ‘hj1t4x7t2uvwa’ is the odd one out. 

The logic followed here is:

Sum of digit of given number = 14

By checking options:

(1) 5423 → 5 + 4 + 2 + 3 = 14 

(2) 6138 → 6 + 1 + 3 + 8 = 18 ≠ 14

(3) 1652 → 1 + 6 + 5 + 2  =14

(4) 6341 → 6 + 3 + 4 + 1 = 14

Hence, 6138 is the odd one.

Explanation:

If we try adding the numbers directly (i.e. considering decimal)

Since 7+ 6 =13 and the given answer 435 has 5 in the one’s place, therefore, the numbers are in base 8;

because 13 will correspond to 15 (7 + 8) in the base 8 system.

Now converting 731 and 672 in decimal

(7 × 8^2) + (3 × 8^1) + (1 × 8^0) = 473

(6 × 8^2) + (7 × 8^1) + (2 × 8^0) = 442

Adding 473 + 442 = 915

Converting 915 into base 8 = 1623

The Logic here is as follows:

13 - 280

⇒ 280/13 = 21.54

∴ 280 is not completely divisible by 13.

14 - 237

⇒ 237/14 = 16.92

∴ 237 is not completely divisible by 14.

15 - 276

⇒ 276/15 = 18.4

∴ 276 is not completely divisible by 15.

16 - 272

⇒ 272/16 = 17

∴ 272 is completely divisible by 16.

Hence, the correct answer is "16 - 272".

The pattern followed here is:

By checking options: 

(1) Apprehensive → anxious or fearful that something bad or unpleasant will happen.

(2) Scared → fearful; frightened.

(3) Composed → having one's feelings and expression under control; calm.

(4) Afraid → feeling fear or anxiety; frightened.

Hence, composed is the correct answer .

Chalk - It is used to write on blackboards.

Book - It contains information of all kinds.

Pen - It is used to write on paper.

Marker - It is used to highlight things or is often used to write on whiteboards.

Thus, except for books, all are used to write.

Hence, "book" is different from the others.

The logic follows here is:

Second number = First number × 3

Third number = Second number × 2

Option 1: 34 : 102 : 204

34 : 34 × 3 : 102 × 2

34 : 102 : 204

Option 2: 24 : 72 : 144

24 : 24 × 3 : 72 × 2 

24 : 72 : 144

Option 3: 21 : 63 : 126

21 : 21 × 3 : 63 × 2

21 : 63 : 126

Option 4: 17 : 51 : 106

17 : 17 × 3 : 51 × 2 ≠ 106

17 : 51 : 102 ≠ 106 

Hence, the correct answer is "17 : 51 : 106".

The logic follows here is:

FGH → F + 1 = G, G + 1 = H.

ABC → A + 1 = B, B + 1 = C.

CEG → C + 2 = E, E + 2 = G.

UVW → U + 1 = V, V + 1 = W.

Hence, "CEG" is the correct answer.

The pattern followed here is:

Option 1 → 7 × 5.43 = 38 , 7 × 7.42 = 52

Option 2 → 12 × 5 = 60, 12 × 7 = 84

Option 3 → 5 × 5 = 25, 5 × 7 = 35

Option 4 → 9 × 5 = 45, 9 × 7 = 63

Hence, '7 : 38 : 52' is the odd pair.

The pattern followed here is:

Option 1 → 5 × 6 = 30, 5 × 12 = 60

Option 2 → 8 × 6 = 48, 8 × 12 = 96

Option 3 → 9 × 6.22 = 56, 9 × 12.44 = 112

Option 4 → 12 × 6 = 72, 12 × 12 = 144

Hence, '9 : 56 : 112' is the odd pair.

The pattern followed here is:

Square root of 1^st term + Square root of 2^nd term = Third term

Option 1 → √25 + √144 = 5 + 12 = 17

Option 2 → √121 + √49 = 11 + 7 = 18 ≠ 19

Option 3 → √196 + √1 = 14 + 1 = 15

Option 4 → √9 + √361 = 3 + 19 = 22

Hence, '121 : 49 : 19' is the odd pair.

The pattern followed here is:

Option 1 → 18 × 2 + 1 = 37

Option 2 → 15 × 2 + 2 = 32

Option 3 → 20 × 2 + 2 = 42

Option 4 → 16 × 2 + 2 = 34

All follow the same pattern except '18, 37'

Hence, '18, 37' is the odd pair.

The pattern followed here is:

The addition is two numbers is a multiple of 10.

Option 1 → 23 - 18 → 23 + 18 = 41, Not divisible by 10.

Option 2 → 30 - 20 → 30 + 20 = 50 → 10 × 5 = 50

Option 3 → 62 - 8 → 62 + 8 = 70 → 10 × 7 = 70

Option 4 → 21 - 9 → 21 + 9 = 30 → 10 × 3 = 30

All except, '23 - 18' follow the same pattern.

Hence, '23 - 18' is different from others.

The pattern followed here is:

Square root of 1^st term + Square root of 2^nd term = Third term

Option 1 → √64 + √4 = 8 + 2 = 10

Option 2 → √169 + √100 = 13 + 10 = 23

Option 3 → √49 + √81 = 7 + 9 = 16

Option 4 → √225 + √36 = 15 + 6 = 21 ≠ 22

Hence, '225 : 36 : 22' is the odd pair.

The pattern followed here is:

Option 1 → 14 × 2 + 1 = 29

Option 2 → 11 × 2 + 1 = 23

Option 3 → 17 × 2 + 3 = 37

Option 4 → 21 × 2 + 1 = 43

All follow the same pattern except '17, 37'

Hence, '17, 37' is the odd pair.

Except for Samsung, all the other three are the type of motor companies, while Samsung is a mobile company.

Hence, Samsung is the answer.

​​The logic follows here is:-

Place value of first letter - 1 = Second letter, Place value of second letter - 1 = Third letter

Let's check each option:-

1) Z - 1 = Y, Y - 1 = X

2) F - 1 = E, E - 1 = D

3) N - 1 = M, M - 1 = L 

4) G - 1 = F ≠ H, F - 1 = E ≠ I

Hence, 'GHI' is odd one among given alternatives.

​​The logic follows here is:-

Place value of first letter - 1 = Second letter, Place value of third letter + 1 = Fourth letter

Let's check each option:-

1) C - 1 = B, U + 1 = V

2) Y - 1 = X, T + 1 = U

3) R - 1 = Q, O + 1 = P

4) I - 1 = H ≠ J, S + 1 = T ≠ O

Hence, 'IJSO' is odd one among given alternatives.

​The logic follows here is:-

Place value of first letter - 1 = Second letter, Place value of second letter + 4 = Third letter, Place value of third letter - 1 = Fourth letter

Let's check each option:-

1) E - 1 = D, D + 4 = H, H - 1 = G

2) L - 1 = K, K + 4 = O, O - 1 = N

3) U - 1 = T ≠ V, T + 4 = X ≠ W, X - 1 = W ≠ X

4) Q - 1 = P, P + 4 = T, T - 1 = S

Hence, 'UVWX' is odd one among given alternatives.

In the given clusters:

The pattern followed here is:

First letter is at fourth place, Second letter is at 2nd place, Third letter is at first place and Fourth letter is at third place.

Option 1 is not following the pattern as its first letter is at second place and other also not at correct place.

Hence, LICK : ILCK is different from rest.

The logic is:

1. 12 : 120 → 12 × (12 - 2) = 12 × 10 = 120

2. 13 : 143 → 13 × (13 - 2) = 13 × 11 = 143

3. 18 : 288 → 18 × (18 - 2) = 18 × 16 = 288

4. 11 : 111 → 11 × (11 - 2) = 11 × 9 = 99 ≠ 111 

Hence, ‘11 : 111’ is the odd one out.

The correct answer is Boat.

• The class Reptilia comprises three major groups of extant vertebrates turtles, crocodilians, and squamates (lizards and snakes).
  • Reptiles are cold-blooded vertebrates. (Vertebrates have backbones.) They have dry skin covered with scales or bony plates and usually lay soft-shelled eggs.
  • Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both.

• A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size, shape, cargo or passenger capacity, or its ability to carry boats.
• Small boats are typically found on inland waterways such as rivers and lakes, or in protected coastal areas.

The logic followed here is:

In option 1, Stringent means "very strict" and flexible means "able to bend or move easily without breaking". So both are antonyms to each other.

In option 2, Steadfast means "faithful and loyal" and irresolute means "uncertain how to act or proceed". So both are antonyms to each other.

In option 3, Docile means "quiet and easy to control" and submissive means "ready to obey other people". So both are synonyms to each other. This is different from others.

In option 4, Monotonous means "never changing and therefore boring" and exciting means "causing strong feelings of pleasure and interest". So both are antonyms to each other.

Hence, "option 3" is the correct answer.

Logic: Add the first two digits to get the last two digits.

1) 8917 ⇒ 8 + 9 = 17

2) 6511 ⇒ 6 + 5 = 11

3) 7512 ⇒ 7 + 5 = 12

4) 9210 ⇒ 9 + 2 = 11 ≠ 10

The logic follows here is :-

By observing the given options :

1) 32, 8, 5

= (8 × 5) + 5

= 40 + 5

45 ≠ 32

2) 29, 4, 6

= (4 × 6) + 5

= 24 + 5

29 = 29

3) 68, 7, 9

= (7 × 9) + 5

= 63 + 5

68 = 68

4) 96, 7, 13

= (7 × 13) + 5

= 91 + 5

96 = 96

Thus, the odd one is '32, 8, 5'.