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Question 31

PSTCL LDC 2019• Logical Reasoning

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:

  1. All insects are birds.

  2. Some birds can swim.

Conclusions:

I) Some insects can swim.

II) Some birds are insects.

  1. AOption (a)

    Only conclusion II follows.

  2. BOption (b)

    Both conclusions I and II follow

  3. COption (c)

    Neither conclusion I nor II follows.

  4. DOption (d)

    Only conclusion I follows.

View answer & explanation

Correct answer

Answer: (a)A.

Only conclusion II follows.

Why this answer is correct

The possible diagram of the given statement is:

I) Some insects can swim → False (As there is no definite relation given between Insects and swim)

II) Some birds are insects → True (As it clearly visible All insects are birds and some insects are birds)

Hence, Only conclusion II follows.

Question 32

PSTCL LDC 2019• Logical Reasoning

In a certain code language, if PAINT is written as RIUPV and SPOON is written as URAAP, then how will BENCH be written as in that language?

  1. AOption (a)

    DUPIJ

  2. BOption (b)

    DOPEJ

  3. COption (c)

    DGPEJ

  4. DOption (d)

    DIPEJ

View answer & explanation

Correct answer

Answer: (b)B.

DOPEJ

Why this answer is correct

The logic follows here is:

From the Alphabetical table:

Pattern: Consonant → increased by +2 next consonant and Vowel  → increased by +2 next vowel.

Example for vowel: A → I, I → U, O → A

Similarly,

In the same way,

Hence, "DOPEJ" is the correct answer.

Question 33

PSTCL LDC 2019• Logical Reasoning

"West‟ is related to "Gujarat‟ in the same way as "South‟ is related to "Kerala‟ and "East‟ is related to "______ ‟. 

  1. AOption (a)

    Uttar Pradesh

  2. BOption (b)

    Andhra Pradesh

  3. COption (c)

    Arunachal Pradesh

  4. DOption (d)

    Madhya Pradesh

View answer & explanation

Correct answer

Answer: (c)C.

Arunachal Pradesh

Why this answer is correct

The Logic follows here is:

StateLocated in direction
GujaratWest
KeralaSouth
Arunachal PradeshEast

 

All the given name of the States does not locate in East direction except Arunachal Pradesh

Hence, Arunachal Pradesh is the correct answer.

Additional Information

StateLocated in direction
Madhya PradeshCentral India
Uttar PradeshNorth-Central Part
Andhra PradeshSouth

Question 34

PSTCL LDC 2019• Logical Reasoning

In a certain code language, if DHAKA is written as EGBJB and DELHI is written as EDMGJ, then how will AJMER be written as in that language?

  1. AOption (a)

    BILFQ

  2. BOption (b)

    BKNDS

  3. COption (c)

    BKLFQ

  4. DOption (d)

    BINDS

View answer & explanation

Correct answer

Answer: (d)D.

BINDS

Why this answer is correct

The logic follows here is:

From the Alphabetical table:

Pattern: alphabet increased by +1 again alphabet decreased by -1 and So on.

Similarly,

In the similar way,

Hence, BINDS is the correct answer.

Question 35

PSTCL LDC 2019• Logical Reasoning

If the signs "+‟ and "–‟ are interchanged and "×‟ and "÷‟  are interchanged, and also the digits "3‟ and "6‟ are interchanged, then what will be the value of the following expression? 16 – 23 + 36 × (6 – 3) ÷ 4

  1. AOption (a)

    3

  2. BOption (b)

    7

  3. COption (c)

    -9

  4. DOption (d)

    11

View answer & explanation

Correct answer

Answer: (d)D.

11

Why this answer is correct

The given equation is: 16 – 23 + 36 × (6 – 3) ÷ 4

Using the following symbol to verify the given

Statements:

Symbol+-x÷36
Interchange-+÷x63

Interchange the symbols of the equation, we get

13 + 26 - 63 ÷ (3 + 6) x 4

Applying BODMAS rule:

⇒ 13 + 26 - 63 ÷ 9 x 4

⇒ 13 + 26 - 7 x 4

⇒ 13 + 26 - 28

⇒ 39 - 28

= 11

Hence, "11" is the correct answer.

Question 36

PSTCL LDC 2019• Logical Reasoning

One evening, Simran and Sejal are sitting across a table facing each other such that the shadow of Simran falls to the back-right side of Sejal. Now, both of them turn 180 degree anti-clockwise in their respective places. In the new position, to which side of Simran will the shadow of Sejal fall?

  1. AOption (a)

    Back-right

  2. BOption (b)

    Front-right

  3. COption (c)

    Front-left

  4. DOption (d)

    Back-left

View answer & explanation

Correct answer

Answer: (a)A.

Back-right

Why this answer is correct

The logic follows here is:

1st image show Before turn:

2nd image shows after turn 1800 anti-clockwise.

Now, Sejal image falls Back-right of Simran.

Hence, "Back-right" is the correct answer.

Question 37

PSTCL LDC 2019• Logical Reasoning

In the word "THERAPY‟, if each vowel is replaced by the next vowel in the English alphabet series and each consonant is replaced by the letter appearing just before it in the English alphabet series, then from the new word, which of the following meaningful word can be formed?

  1. AOption (a)

    GET

  2. BOption (b)

    SIN

  3. COption (c)

    SIX

  4. DOption (d)

    OUT

View answer & explanation

Correct answer

Answer: (c)C.

SIX

Why this answer is correct

From the Alphabetical table:-

According to given

Statement:

Consonant decrease -1.

Vowel change to its next alphabet.

S G I Q E O X → S I X

After changing the required alphabets according to given statement, we get a meaningful word that is SIX.

Hence**, SIX** is the correct answer.

Question 38

PSTCL LDC 2019• Logical Reasoning

From the given options, select the time at which the angle formed between the hour hand and minute hand will exactly be 45 degree.

  1. AOption (a)

    10:45 a.m.

  2. BOption (b)

    7:30 p.m.

  3. COption (c)

    4:15 a.m.

  4. DOption (d)

    6:20 p.m.

View answer & explanation

Correct answer

Answer: (b)B.

7:30 p.m.

Why this answer is correct

While using the formula:

Angle: |(11/2) M - 30 H|

Where, M = minutes and H = hours.

Option 1: 10:45 a.m

Angle = |(11/2) x 45 - 30 x 10| = |247.5 - 300| = |-52.5°| = 52.5° ≠ 45°.

Option 2: 7:30 p.m

Angle = |(11/2) x 30 - 30 x 7| = |165 - 210| = |-45°| = 45° = 45°.

Option 3: 4:15 a.m

Angle = |(11/2) x 15 - 30 x 4| = |82.5 - 120| = |-37.5°| = 37.5° ≠ 45°.

Option 4: 6:20 a.m

Angle = |(11/2) x 20 - 30 x 4| = |110 - 120| = |-10°| = 10° ≠ 45°.

Therefore, only in Option 2 i.e 7:30 p.m, the angle formed between Minute and Hour hand is exactly 45°.

Hence, the correct answer is "7:30 p.m".

Question 39

PSTCL LDC 2019• Logical Reasoning

A panel of five judges, P, Q, R, S and T, are sitting on a long bench, not necessarily in the same order, all facing the north. P is sitting to the immediate left of Q but to the right of R. S is to the right of P but to the left of T. In the given scenario, which of the following statements is correct?

  1. AOption (a)

    T is not seated at any of the extreme ends.

  2. BOption (b)

    S is to the right of P but left of R.

  3. COption (c)

    Q is the immediate neighbour of S.

  4. DOption (d)

    P is seated exactly in the middle.

View answer & explanation

Correct answer

Answer: (c)C.

Q is the immediate neighbour of S.

Why this answer is correct

Given:

  1. All judges are facing North.
  2. P is sitting to the immediate left of Q but to the right of R.
  3. S is to the right of P but to the left of T.

So, according to the information:

Therefore, only the statement in option 3 i.e "Q is the immediate neighbor of S" is satisfying.

Hence, the correct answer is "Q is the immediate neighbor of S".

Question 40

PSTCL LDC 2019• Logical Reasoning

"Doctor‟ is related to "Stethoscope‟ in the same way as "Barber‟ is related to "Scissors‟ and "Architect‟ is related to "______ ‟. 

  1. AOption (a)

    Curette

  2. BOption (b)

    Chisel

  3. COption (c)

    T-Square

  4. DOption (d)

    Forceps

View answer & explanation

Correct answer

Answer: (c)C.

T-Square

Why this answer is correct

The Logic here is as follows:

The doctor uses a Stethoscope to examine the patient.

The Barber uses Scissors to cut the hairs of the person.

Similarly,

An architect uses T-Square for technical drawing.

Hence, the correct answer is "T-Square".

Additional Information

* T-Square: A T-Square is a technical drawing instrument used by draftsmen primarily as a guide for drawing horizontal lines on a drafting table. 

  • Chisel: A chisel is a tool with a characteristically shaped cutting edge of the blade on its end, for carving or cutting a hard material such as wood, stone, or metal by hand, struck with a mallet, or mechanical power.

  • Curette: A curette is a surgical instrument designed for scraping or debriding biological tissue or debris in a biopsy, excision, or cleaning procedure.

  • Forceps: Forceps are handheld, hinged instruments used for grasping and holding objects. Forceps are used when fingers are too large to grasp small objects or when many objects need to be held at one time while the hands are used to perform a task.