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Question 41

PSTCL LDC 2019• Logical Reasoning

If the following words are arranged in the order of their appearance in an English dictionary, then what will be the new sequence?

  1. PRAISE
  2. PRISM
  3. PRANK
  4. PROOF
  5. PRIEST
  1. AOption (a)

    3 - 1 - 5 - 2 - 4

  2. BOption (b)

    1 - 3 - 2 - 5 - 4

  3. COption (c)

    1 - 3 - 5 - 2 - 4

  4. DOption (d)

    3 - 1 - 2 - 5 - 4

View answer & explanation

Correct answer

Answer: (c)C.

1 - 3 - 5 - 2 - 4

Why this answer is correct

According to the sequence in the dictionary:

  1. PRAISE
  2. PRANK
  3. PRIEST
  4. PRISM
  5. PROOF

Hence, “1 - 3 - 5 - 2 - 4“ is the correct answer.

Question 42

PSTCL LDC 2019• Logical Reasoning

Read the given statement and from the following four options, select the assumption that is implicit in the given statement.

Statement: It was a batting wicket and India felt the absence of player A when they lost quick wickets and lost the cricket game against team X.

  1. AOption (a)

    Player A is the captain of India.

  2. BOption (b)

    Player A is an opening batsman

  3. COption (c)

    Player A’s record against Australia is poor.

  4. DOption (d)

    Player A was not playing the game

View answer & explanation

Correct answer

Answer: (d)D.

Player A was not playing the game

Why this answer is correct

Given,

Statement: It was a batting wicket and India felt the absence of player A when they lost quick wickets and lost the cricket game against team X.

Assumption 1: Player A is the captain of India → False (As there is no mention of player A or any player being a Captain of the Indian team in the statement, thus option 1 assumption is False.)

Assumption 2: Player A is an opening batsman → False (As there is no mention of player A being an opening batsman in the statement, thus option 2 assumption is False.)

Assumption 3: Player A’s record against Australia is poor → False (As there is no mention of player A's record against Australia in the statement, thus option 3 assumption is False.)

Assumption 4: Player A was not playing the game → True (As it is mentioned in the statement that India felt the absence of player A while playing against team X, thus option 4 assumption that player A was not playing the game is True.)

Therefore, only option 4 i.e "Player A was not playing the game" is following the statement given in the question.

Hence, the correct answer is "Player A was not playing the game".

Question 43

PSTCL LDC 2019• Logical Reasoning

In a murder case, police rounded up four suspects and one of those is surely a killer. These four suspects made the following

Statements:

Suspect A said, “I am not the killer”.

Suspect B said, “I am the killer”.

Suspect C said, “A is the killer”.

Suspect D said, “C is lying”.

If out of the given four statements, only one statement is correct, then identify who is the real killer?

  1. AOption (a)

    C

  2. BOption (b)

    A

  3. COption (c)

    D

  4. DOption (d)

    B

View answer & explanation

Correct answer

Answer: (b)B.

A

Why this answer is correct

Given

Statements:

Statement 1: Suspect A said, “I am not the killer”.

Statement 2: Suspect B said, “I am the killer”.

Statement 3: Suspect C said, “A is the killer”.

Statement 4: Suspect D said, “C is lying”.

If out of the given four statements, only one statement is correct.

Let statement 1 is correct and all other statements are not correct, then:

Statement 1: Suspect A said, “I am not the killer”. → True

Statement 2: Suspect B said, “I am the killer”. → False

Statement 3: Suspect C said, “A is the killer”. → False

Statement 4: Suspect D said, “C is lying”. → False

Therefore, from the given statement it can be concluded that both statement 3 and 4 are contradictory. According to the statement 3 A is not the killer and according to the statement 4 C is not lying.

Let the statement 2  is correct and all other statements are not correct, then:

Statement 1: Suspect A said, “I am not the killer”. → False

Statement 2: Suspect B said, “I am the killer”. → True

Statement 3: Suspect C said, “A is the killer”. → False

Statement 4: Suspect D said, “C is lying”. → False

Here statement 1 and statement 2 are contraditory as both A and B are the killers.

Let the statement 3  is correct and all other statements are not correct, then:

Statement 1: Suspect A said, “I am not the killer”. → False

Statement 2: Suspect B said, “I am the killer”. → False

Statement 3: Suspect C said, “A is the killer”. → True

Statement 4: Suspect D said, “C is lying”. → False

Here statement 1, 2 and statement 3 verifying that A is the killer.

Let the statement 4  is correct and all other statements are not correct, then:

Statement 1: Suspect A said, “I am not the killer”. → False

Statement 2: Suspect B said, “I am the killer”. → False

Statement 3: Suspect C said, “A is the killer”. → False

Statement 4: Suspect D said, “C is lying”. → True

Here according to the statement 4 C is lying then A is not the killer but statement 1 is false therefore A should be the killer. Both of the statements are contradictory.

Hence, A is the killer is the correct answer.

Question 44

PSTCL LDC 2019• Logical Reasoning

Select the Venn diagram that best represents the relationship between the following classes.

Orange, Eatables, Fruits

  1. AOption (a)

  2. BOption (b)

  3. COption (c)

  4. DOption (d)

View answer & explanation

Correct answer

Answer: (c)C.

Why this answer is correct

The Logic here is as follows:

Here, Orange is a Fruit, and all fruit comes under Eatable items.

Possible Venn Diagram:

Therefore, Option 3 represents the relationship between Orange, Fruit, and Eatable.

Hence, the correct answer is "Option 3".

Question 45

PSTCL LDC 2019• Logical Reasoning

A rectangular solid block with dimensions 6 cm × 4 cm × 4 cm is painted green on all its surfaces and then cut into smaller cubes of side 1 cm each. How many of these smaller cubes will have green colour on exactly two surfaces?

  1. AOption (a)

    48

  2. BOption (b)

    32

  3. COption (c)

    16

  4. DOption (d)

    12

View answer & explanation

Correct answer

Answer: (b)B.

32

Why this answer is correct

Given: 

Dimensions of rectangular solid box = 6 cm × 4 cm × 4 cm

A rectangular solid block is painted green on all its surfaces and then cut into smaller cubes of side 1 cm each.

By formula

Middle cubes(two surface painted) = 4(n1 - 2) + 4(n2 - 2) + 4(n3 - 2)

Here n1 = 6, n2 = 4 and n3 = 4

green colour on exactly two surfaces = 4(6 - 2) + 4(4 - 2) + 4(4 - 2)

= 4(4) + 4(2) + 4(2)

= 16 + 8 + 8

= 32

Therefore, green colour on exactly two surfaces are '32'

Hence, "32" is the correct answer.

Question 46

PSTCL LDC 2019• Logical Reasoning

Sapna and Sneha have Rs. 10,000 and Rs. 11,000 with them, respectively. They want to buy a common gift for their friend and share the cost equally between the two of them. They visit a supermarket and decide to buy a mobile phone worth Rs. 18,000. The retailer charged an additional 2 percent amount for gift wrapping and delivery to their friend's home. What is the amount that each of them have to bear for the purchase of the phone?

  1. AOption (a)

    Rs. 10,500

  2. BOption (b)

    Rs. 9,180

  3. COption (c)

    Rs. 6,120

  4. DOption (d)

    Rs. 10,800

View answer & explanation

Correct answer

Answer: (b)B.

Rs. 9,180

Why this answer is correct

Given Sapna and Sneha have Rs. 10,000 and Rs.11,000

They want to buy a common gift for their friend and share the cost equally between the two of them

 Cost price of mobile phone = 18,000

The retailer charged an additional 2 percent amount for gift wrapping and delivery

Overall cost of mobile phone = Cost of mobile phone + Delivery charges

Delivery charges = (2 ÷ 100) × 18,000 = Rs 360.

Overall cost of mobile phone = 18,000 + 360

Overall cost of mobile phone = Rs 18,360

Share the overall cost of mobile phone to the Sapna and Sneha equally.

Amount to each of them = Rs 18,360 ÷ 2 = Rs 9,180.

Hence, "Rs 9,180" is the correct answer.

Shortcut Trick

Given cost price Rs 18,000 and additional 2 percent of delivery charge 

Taking Rs 18,000 is 100 percentage and additional 2 percent of delivery charge as a 100 % + 2 % = 102 %

100 % = 18000

102 % =   ?

(18000 ÷ 100 %) × 102 % = Rs 18,360

Amount to each of them = Rs 18,360 ÷ 2 = Rs 9,180

Question 47

PSTCL LDC 2019• Logical Reasoning

Select the letter-cluster that can replace the question mark (?) in the following series.

BBC, CAE, DZG, EYI, ? , GWM, HVO, IUQ

  1. AOption (a)

    FKX

  2. BOption (b)

    FKK

  3. COption (c)

    FXK

  4. DOption (d)

    FXX

View answer & explanation

Correct answer

Answer: (c)C.

FXK

Why this answer is correct

The logic is :

Here the pattern follow is as below,

Hence, "FXK" is the correct answer.

Question 48

PSTCL LDC 2019• Logical Reasoning

Consider the following conditions and answer the question that follows.

  1. A=B means A is the brother of B

  2. A@B means A is the father of B

  3. A&B means A is the wife of B

  4. A#B means A is the daughter of B

  5. A%B means A is the mother of B

If W&X@Z%Y, then how is "W‟ related to "Y‟?

  1. AOption (a)

    Grandmother

  2. BOption (b)

    Sister

  3. COption (c)

    Mother

  4. DOption (d)

    Daughter

View answer & explanation

Correct answer

Answer: (a)A.

Grandmother

Why this answer is correct

Preparing the family tree using the following symbols:

Symbol=@&#%
MeaningBrotherFatherWifeDaughterMother

 

On decoding W&X@Z%Y means W is Wife of X, X is Father of Z, Z is Mother of Y

Therefore, above figure clearly shows the W is Grandmother of Y.

Hence, "Grandmother" is the correct answer.

Question 49

PSTCL LDC 2019• Logical Reasoning

Given are two positions of the same non-standard dice having the numbers from 1 to 6 on its six surfaces

If the surface with number 4 is exactly opposite to the surface with number 6, then which number will be on the surface opposite to the one with number 5?

  1. AOption (a)

    1

  2. BOption (b)

    6

  3. COption (c)

    2

  4. DOption (d)

    3

View answer & explanation

Correct answer

Answer: (d)D.

3

Why this answer is correct

Given: The surface with number 4 is exactly opposite to the surface with number 6 after changing the dice

As 4 is the common face on both the dice, keeping it constant and then rotating in anticlockwise direction, we get the faces opposite to each other.

432
651

Clearly, the pair of numbers '3 and 5' are present on the opposite surfaces of the cube.

Hence, "3" is the correct answer.

Question 50

PSTCL LDC 2019• Logical Reasoning

Shilpa visits a jewellery shop to buy a set of bangles. The shop owner tells her that on the marked price of Rs. 11,000, she can get a discount of 10 percent considering the sale period also, he suggested that if she pays through a mobile payment application, she can get an additional 2 percent off on the discounted price. If Shilpa decides to buy the set of bangles by paying through the mobile payment application, what is the net payment she will make?

  1. AOption (a)

    Rs. 9,702

  2. BOption (b)

    Rs. 9,800

  3. COption (c)

    Rs. 9,890

  4. DOption (d)

    Rs. 9,680

View answer & explanation

Correct answer

Answer: (a)A.

Rs. 9,702

Why this answer is correct

Given:

Marked price of a set of bangles = Rs 11,000

In sale period given discount 10 %

Selling price= Market price - Discount percent

Selling price = 11,000 - (10 ÷ 100) × 11,000

Selling price= 11,000 - 1100

Selling price = Rs 9,900

Get an additional 2 % off on the discount price, payment through the mobile payment application

Net payment = Selling price - Additional discount %

Net payment = 9,900 - (2 ÷ 100) × 9,900

Net payment = 9,900 - 198

Net payment = Rs 9,702

She make net payment = Rs 9,702

Hence, "9702" is the answer.

Shortcut Trick: 

Given amount is always taken as 100 percent

Given discount 10 % means (100 - 10) = 90 percent 

She will pay 90 % of money

100 % = 11, 000

90 % =    ?

(11,000 ÷ 100) × 90 = Rs 9,900 

Rs 9,900 is taken as 100%

Given an additional discount of 2 % means (100 - 2) = 98 %

100 % = 9,900

98 % =   ?

(9,900 ÷ 100 %) × 98 % = Rs 9,702.