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Question 731

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

Pointing to a man in a photograph, a man said: "he is the husband of the only daughter of my mother's only daughter-in-law's". How is the photograph related to that man?

  1. AOption (a)

    Son

  2. BOption (b)

    Son-in-law

  3. COption (c)

    Brother

  4. DOption (d)

    Brother-in-law

View answer & explanation

Correct answer

Answer: (b)B.

Son-in-law

Why this answer is correct

The figure is given below:

Hence, the correct answer is son-in-law.

Question 732

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

What internal angle is made by the hands of a clock at 04:40? 

  1. AOption (a)

    95º

  2. BOption (b)

    105º

  3. COption (c)

    100º

  4. DOption (d)

    90º

View answer & explanation

Correct answer

Answer: (c)C.

100º

Why this answer is correct

Angle: There are two types of angles that are made by the hands of a clock.

1) Internal Angle:- Angle between two needles (Hour and Minute hands of a clock) is less than 180º

  1. External Angle:- Angle between two needles (Hour and Minute hands of a clock) is more than 180º

To find the angle between the hands of the clock,

Angle =  | Hour × 30 - 11 ÷ 2 × Minute |

Given,

Hour = 4

Minute = 40

Substitute the value of Hour and minute in the above formula.

Angle = | 4 × 30 - 11 ÷ 2 × 40 |

Angle = | 120 - 11 × 20 |

Angle = |120 - 220 |

Angle = | - 100 |

Angle = 100º            (Less than 180º)

Hence, 100º is the correct answer.

Question 733

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

Select the odd word from the given alternatives.

  1. AOption (a)

    Lavani

  2. BOption (b)

    Ghoomar

  3. COption (c)

    Qawwali

  4. DOption (d)

    Bhangara

View answer & explanation

Correct answer

Answer: (c)C.

Qawwali

Why this answer is correct

ArtArt Form
LavaniMaharashtrian Dance Form
GhoomarRajasthani Dance Form
QawwaliMusic Form
BhangaraPunjabi Dance Form

 

Hence, Qawwali is the odd one among the given options.

Question 734

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

Arjun is facing towards the south. From there, he walks 15 m towards the east, then 20 m towards the north, then 15 m towards the east and then 20 m towards the north to reach point B. what is the shortest distance between his starting point and point B?

  1. AOption (a)

    50 m

  2. BOption (b)

    30 m

  3. COption (c)

    45 m

  4. DOption (d)

    60 m

View answer & explanation

Correct answer

Answer: (a)A.

50 m

Why this answer is correct

Directions:-

Here, A is the starting point and B is the end point.

AB = √ 30 × 30 + 40 × 40 

AB = √ 900 + 1600

AB = √ 2500

AB = 50

Thus, the correct answer is 50 m.

Question 735

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

In a certain code language, ‘PROVED’ is written as ‘65’and ‘REMOVER’ is written as ‘81’.How will ‘DEVOUR’ be written in that language?

  1. AOption (a)

    85

  2. BOption (b)

    80

  3. COption (c)

    70

  4. DOption (d)

    75

View answer & explanation

Correct answer

Answer: (c)C.

70

Why this answer is correct

The logic followed here is:

Logic: Sum of the place value of all the letters except O.

'PROVED’ is written as ‘65'

⇒ 16 + 18 + 22 + 5 + 4 = 65.

'REMOVER’ is written as ‘81'

⇒ 18 + 5 + 13 + 22 + 5 + 18 = 81.

Similarly, for 'DEVOUR'

⇒ 4 + 5 + 22 + 21 + 18 = 70.

So, 'DEVOUR' will be written as '70'.

Hence, the correct answer is "Option 3".

Question 736

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

Select the related number from the given alternatives.

4974 : 2836 :: 4525 : ?

  1. AOption (a)

    2418

  2. BOption (b)

    2010

  3. COption (c)

    2146

  4. DOption (d)

    1020

View answer & explanation

Correct answer

Answer: (d)D.

1020

Why this answer is correct

The logic follows here is :

Similarly,

Hence, the correct answer is "1020".

Question 737

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

Reading the given cluster from left to right, how many consonants are there that are immediately followed by a vowel?

(Left) U T R @ T 3 M @ 7 D E G M E 7 # X X 4 1 X D & G O H 4 @ 3 1 K M S A C # D (Right)

  1. AOption (a)

    3

  2. BOption (b)

    6

  3. COption (c)

    4

  4. DOption (d)

    5

View answer & explanation

Correct answer

Answer: (c)C.

4

Why this answer is correct

The logic followed here is:

1) Vowels are a, e. i, o, u.

2) Consonants are all the letters in English alphabet except vowels.

The required pattern is :  Consonants → Vowel

In the given series, consonants that are immediately followed by a vowel are: 

Series : (Left) U T R @ T 3 M @ 7 D E G M E 7 # X X 4 1 X D & G O H 4 @ 3 1 K M S A C # D (Right)

Thus, there are FOUR consonants that are immediately followed by a vowel, namely DE, ME, GO, SA.

Hence, "4" is the correct answer.

Question 738

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

Which of the following figures can be removed so that all, starting from I, fit into a pattern?

  1. AOption (a)

    II

  2. BOption (b)

    IV

  3. COption (c)

    III

  4. DOption (d)

    V

View answer & explanation

Correct answer

Answer: (b)B.

IV

Why this answer is correct

The logic followed is:

i) In figure alphabet A is moving each corner in the box in a clockwise direction and replaced by the next alphabet.

ii) In figure alphabet N is moving in the next box in a clockwise direction and replaced by the previous alphabet.

iii) Number is moving each corner in the box in a clockwise direction and replaced by the next number. 

Except for the fourth, all the others are following the pattern to their next image.

Hence, the correct answer is "Option 2".

Question 739

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

A few boys are sitting in a row. Prateek is sitting fifteenth from the left and Rahul is the tenth boy from the right. If there are five boys between Prateek and Rahul, how many boys are there in the row?

  1. AOption (a)

    29

  2. BOption (b)

    31

  3. COption (c)

    33

  4. DOption (d)

    30

View answer & explanation

Correct answer

Answer: (d)D.

30

Why this answer is correct

Position of Prateek = 15th from the left

Position of Rahul = 10th from the right

Number of boys between Prateek and Rahul = 5

Total boys in row = 15 + 5 + 10 = 30

Thus, there are 30 boys in the row.

Here, we have not checked for the overlapping condition because all the options are greater than 25 (15 from the left + 10 from the right). So, it is definite that it is not an overlapping condition.

Question 740

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 1

Arrange the following words as per order in the dictionary:

  1. Tautegorical
  2. Tardigradous
  3. Tauricornous
  4. Taurocholate
  5. Tautoousious
  6. Tarantulated
  1. AOption (a)

    6, 2, 3, 4, 1, 5

  2. BOption (b)

    2, 3, 6, 4, 1, 5

  3. COption (c)

    6, 2, 3, 1, 4, 5

  4. DOption (d)

    2, 6, 3, 4, 1, 5

View answer & explanation

Correct answer

Answer: (a)A.

6, 2, 3, 4, 1, 5

Why this answer is correct

According to the sequence in the dictionary: 

The correct order of the given words is:

  1. Tarantulated
  2. Tardigradous
  3. Tauricornous
  4. Taurocholate
  5. Tautegorical
  6. Tautoousious

Hence, the alphabetical order followed in dictionary is 6, 2, 3, 4, 1, 5.

Additional Information

  1. First of all, check the common letter in all.
  2. Arrange them according to the alphabet they come first. 
  3. When common letters are arranged, then go for the rest.