Reasoning PYQs

The position and positional values or English Alphabets are:

The logic followed here is:

So, XCH will replace the question mark (?) in the following series.

Hence, the correct answer is "Option 4".

The logic followed here is:

Logic: a @ b = (a ÷ b)ᵇ

6 @ 2 = 9

6 ÷ 2 = 3 → 3² = 9 

and

15 @ 3 = 125

15 ÷ 3 = 5 → 5³ = 125 

Similarly,

8 @ 4 = ?

8 ÷ 4 = 2 → 24 = 16

So, 16 will come in the place of ?

Hence, the correct answer is "Option 3".

BODMAS Table:

Given equation: 40 ÷ 8 + 10 - 5 × 2 = 5

Let's check each option one by one.

1. ÷ and ×

Given equation: 40 ÷ 8 + 10 - 5 × 2 = 5

After interchanging the signs we get;

⇒ 40 × 8 + 10 − 5 ÷ 2 = 5

⇒ 40 × 8 + 10 − 2.5 = 5

⇒ 320 + 10 − 2.5 = 5

⇒ 330 − 2.5 = 5

⇒ 327.5 ≠ 5

⇒ LHS ≠ RHS

2. + and -

Given equation: 40 ÷ 8 + 10 - 5 × 2 = 5

After interchanging the signs we get;

⇒ 40 ÷ 8 − 10 + 5 × 2 = 5

⇒ 5 − 10 + 5 × 2 = 5

⇒ 5 − 10 + 10 = 5

⇒ 15 − 10 = 5

⇒ 5 = 5

⇒ LHS = RHS

3. ÷ and +

Given equation: 40 ÷ 8 + 10 - 5 × 2 = 5

After interchanging the signs we get;

⇒ 40 + 8 ÷ 10 − 5 × 2 = 5

⇒ 40 + 0.8 − 5 × 2 = 5

⇒ 40 + 0.8 - 10 = 5

⇒ 40.8 - 10 = 5

⇒ 30.8 ≠ 5

⇒ LHS ≠ RHS

4. - and ×

Given equation: 40 ÷ 8 + 10 - 5 × 2 = 5

After interchanging the signs we get;

⇒ 40 ÷ 8 + 10 × 5 − 2 = 5

⇒ 5 + 10 × 5 − 2 = 5

⇒ 5 + 50 − 2 = 5

⇒ 55 − 2 = 5

⇒ 53 ≠ 5

⇒ LHS ≠ RHS

So, '+ and -' are the correct signs to swap.

Hence, the correct answer is "Option 2".

Family Chart:

Given: A is the brother of B. B is the sister of C. C is the brother of D.

Clearly, B is sister of D.

Hence, the correct answer is "Option 1".

The logic followed here is:

FD : KH

Similarly,

QM : ?

So, VQ will come in the place of ?.

Hence, the correct answer is "Option 3".

The logic followed here is:

Given: 13, 16, 21, 30, 45, ?So, 68 will come next in the series.

Hence, the correct answer is "Option 4".

Statement: Rising noise pollution in urban areas is affecting children's concentration.

Now,

Conclusion I: Urban children can't study well. - False (Because the statement says concentration is affected, but it does not say children cannot study at all.)

Conclusion II: Controlling noise pollution may improve children's concentration. - True (Because noise pollution is affecting concentration, then reducing or controlling it may improve concentration. The word “may” makes it logically valid.)

So, only II follows.

Hence, the correct answer is "Option 2".

The logic followed here is:

Logic: Palindrome (same forward & backward)

1. 333 → Palindrome
2. 141 → Palindrome
3. 444 → Palindrome
4. 544 → Not a palindrome

So, 544 is the only number that is not a palindrome (does not read the same forward and backward).

Hence, the correct answer is "Option 4".

Statement: The introduction of Artificial Intelligence into healthcare systems can enhance diagnostic accuracy, but its widespread implementation may lead to ethical dilemmas in patient care.

Now,

Assumptions:

I. AI can improve healthcare diagnostics. → Implicit (The statement implies AI can enhance diagnostic accuracy. If AI cannot improve diagnostics, the statement would not be valid.)

II. The ethical concerns surrounding AI in healthcare are significant. → Implicit (The statement implies widespread implementation may lead to ethical dilemmas. For this to be meaningful, ethical concerns must exist and be relevant.)

III. AI will eventually replace human healthcare professionals. → Not Implicit (The statement does not explicitly mention replacement — only enhancement and ethical concerns.)

So, only I and II are implicit.

Hence, the correct answer is "Option 1".

Statement: All metro stations are under CCTV surveillance.

Now,

Conclusions:

I. Activities at metro stations are being monitored. - True (If metro stations are under CCTV surveillance, activities there are being monitored/recorded.)

II. No criminal activity can happen in metro stations. - False (CCTV surveillance does not guarantee that crime cannot occur — it only helps monitor or record it.)

So, only Conclusion I follows.

Hence, the correct answer is "Option 1".

Given: Eight People Tina, Raj, Dia, Viraj, Soma, Meena, Neha and Ria are living in an eight-storey building, but not necessarily in the same order. The ground floor is numbered 1 and the floor above it is numbered 2, and so on, until the topmost floor is numbered 8.

1. Dia lives on the lowermost floor.
2. Only three people live between Dia and Ria.
3. Tina lives on the 4^th floor.
4. Only two people live between Tina and Raj.

5. Neha lives on an odd numbered floor.

3^rd floor, the only odd floor left will be occupied by Neha.

6. Only one person lives between Meena and Viraj.

7. Only five people live between Viraj and Soma.

Only 2^nd floor is vacant, which will be occupied by Soma.

Case I is eliminated, as statement 7 is violated.

So, Neha lives three floors below the Meena, who lives immediate below Raj.

Hence, the correct answer is "Option 1".

Statement: No artist are athletes. Some athlete are painters. All artists are painters.

The least possible Venn diagram for the given statement is:

Conclusions:

I. Some painters are athletes. - Follow (As some athlete are painters. so, some painters are definitely athletes).

II. Some athletes are not painters. - Does not follow (As some athlete are painters. so, some painters are definitely athletes but we can not say that some athlete are not painter)

So, only I follows.

Hence, the correct answer is "Option 1".

The logic followed here is:

• Pacific Ocean – The largest and deepest ocean on Earth.
• Atlantic Ocean – The second-largest ocean, separating the Americas from Europe and Africa.
• Indian Ocean – The third-largest ocean, located between Africa, Asia, and Australia.
• Arctic Ocean – The smallest and shallowest ocean, surrounding the North Pole.
• Mediterranean Sea – A sea connected to the Atlantic Ocean, surrounded by Europe, Asia, and Africa.

The first four are oceans, while the Mediterranean is a sea.

So, Mediterranean is the odd one out.

Hence, the correct answer is "Option 3".

The position and positional values or English Alphabets are:

The logic followed here is:

CLOUD is coded as BKNTC

Similarly,

So, RAINY is written as QZHMX.

Hence, the correct answer is "Option 1".

The position and positional values or English Alphabets are:

The logic followed here is:

AEFJ : KOPT

Similarly,

So, GKLP is the correct option from the given alternatives.

Hence, the correct answer is "Option 3".

Logic: Professional : Place of Work

 

TEACHER is to CLASSROOM: A teacher works in a classroom.

 

Similarly,

SURGEON is to: A surgeon works in an OT (Operation Theatre).

So, OT (Operation Theatre) is related to SURGEON.

Hence, the correct answer is "Option 4".

Given:

Series: 1, 3, 5, 7, …

Number of terms (n) = 10

First term (a) = 1

Common difference (d) = 2

Formula used:

Sum of n terms = n ÷ 2 × [2a + (n − 1)d]

Calculations:

Sum = 10 ÷ 2 × [2 × 1 + (10 − 1) × 2]

⇒ Sum = 5 × [2 + 18]

⇒ Sum = 5 × 20

⇒ Sum = 100

∴ The sum of the first 10 terms is 100.

The position and positional values or English Alphabets are:

The logic followed here is:

Thus, HSJ comes next.

Hence, the correct answer is "Option 1".

The logic followed here is:

1. Troposphere – The lowest layer of Earth’s atmosphere where weather occurs and we live.
2. Stratosphere – The atmospheric layer above the troposphere that contains the ozone layer.
3. Hydrosphere – All the water present on Earth, including oceans, rivers, lakes, and groundwater.
4. Mesosphere – The atmospheric layer above the stratosphere where meteors burn up.

All options except Hydrosphere are layers of the atmosphere, whereas Hydrosphere refers to all the water bodies of Earth.

Hence, the correct answer is "Option 3".

The logic followed here is:

1. Retina – The light-sensitive layer at the back of the eye that helps in vision.
2. Cornea – The transparent front part of the eye that allows light to enter.
3. Iris – The colored part of the eye that controls the size of the pupil.
4. Femur – The thigh bone, which is the longest and strongest bone in the human body.

All options except Femur are parts of the eye, whereas Femur is a bone in the leg.

Hence, the correct answer is "Option 4".