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Question 151

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.

  1. AOption (a)

    AZ

  2. BOption (b)

    TG

  3. COption (c)

    RI

  4. DOption (d)

    BX

View answer & explanation

Correct answer

Answer: (d)D.

BX

Why this answer is correct

The pattern followed here is:

(1) A + Z = 01 + 26 = 27

(2) T + G = 20 + 07 = 27

(3) R + I = 18 + 09 = 27

(4) B + X = 02 + 24 = 26

The sum of the place value is given in all letters is 27 except BX.

Hence, "BX" is the odd one out.

Question 152

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

Select the option that is related to the third letter number cluster in the same way as the second letter number cluster is related to the first letter number cluster.

GS4 : TV10 :: XW7 : ?

  1. AOption (a)

    BZ15

  2. BOption (b)

    AW12

  3. COption (c)

    CZ13

  4. DOption (d)

    CD13

View answer & explanation

Correct answer

Answer: (c)C.

CZ13

Why this answer is correct

The positions of the letters according to the English alphabet series:

The pattern for this code is as follows:

Similarly,

Hence, the correct answer is "CZ13".

Question 153

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

In a certain code language, 'STOCK' is written as '340' and 'TENT' is written as '236'. How will 'DOUBLE' be written in that code language?

  1. AOption (a)

    332

  2. BOption (b)

    352

  3. COption (c)

    354

  4. DOption (d)

    238

View answer & explanation

Correct answer

Answer: (c)C.

354

Why this answer is correct

The logic follows here is:

(Sum of place values of the alphabets of the given word) × (Number of alphabets) = Given code

STOCK

Number of alphabets = 5

(S + T + O + C + K) × 5 =  (19 + 20 + 15 + 3 + 11) × 5 = 68 × 5 = 340.

TENT

Number of alphabets = 4

(T + E + N + T) × 4 = (20 + 5 + 14 + 20) × 4 = 59 × 4 = 236.

Similarly,

DOUBLE

Number of alphabets = 6

(D + O + U + B + L + E) × 6 = (4 + 15 + 21 + 2 + 12 + 5) × 6 = 59 × 6 = 354.

Hence, the correct answer is "354".

Question 154

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

Select the related figure from the given alternatives

  1. AOption (a)

  2. BOption (b)

  3. COption (c)

  4. DOption (d)

View answer & explanation

Correct answer

Answer: (a)A.

Why this answer is correct

In the first part of the question, first figure is rotated 90 degrees clockwise in order to obtain the second figure.

Hence, figure 1 is the correct answer.

Question 155

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

If it was Friday on 1 June 2018, what was the day of the week on 19 February 2017?

  1. AOption (a)

    Monday

  2. BOption (b)

    Saturday

  3. COption (c)

    Friday

  4. DOption (d)

    Sunday

View answer & explanation

Correct answer

Answer: (d)D.

Sunday

Why this answer is correct

1 June 2018 is a Friday so 1 June 2017 was a Thursday (2018 is not a leap year).

  • Here, we need to determine the day of the week on 19 February 2017.
  • It is sufficient to calculate the odd days from 19 February 2017 to 1 June 2017.

20 February 2017 to 1 June 2017 =  9 + 31 + 30 + 31 + 1 = 102 days i.e., 14 weeks + 4 odd days

Thus, 19 February 2017 + 102 days = 1 June 2017

19 February 2017 + 4 odd days = 1 June 2017

19 February 2017 + 4 odd days = Thursday

So, Thursday - 4 days = Sunday

Hence, ''Sunday'' is the correct answer.

Confusion Points

  • The question is about 19 February 2017.
  • So, the solution will be using two dates of 2017 to determine the answer.
  • The second date is calculated with the help of the date of 2018 and by using the fact that whether there is a leap year or not.

Question 156

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

Three of the following four words are alike in a certain way and one is different. Pick the number that is different from the rest.

  1. AOption (a)

    Asia

  2. BOption (b)

    Africa

  3. COption (c)

    Europe

  4. DOption (d)

    Kuwait

View answer & explanation

Correct answer

Answer: (d)D.

Kuwait

Why this answer is correct

The logic follows here is:

NamesCategories
AsiaContinent Name
AfricaContinent Name
EuropeContinent Name
KuwaitCountry Name

 

As, All the given options is the name of a Continent except Kuwait. Kuwait is a Country name.

Hence, "Kuwait" is the correct answer.

Additional Information

NamesDescription
Asia- Asia is the largest continent in the world. - It has largest population in the world. - It has 48 countries till now. - Area 44,579,000 km2  or 17,212,000 sq mi. - Largest country in Asia is China & smallest country is Maldives.
Africa- Africa is the world's second-largest and second-most populous continent. - Africa has 54 countries till now. - Area 30.37 million km². - Largest country is Algeria and smallest country is Seychelles.
Europe- Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. - It has 50 countries till now. - Area 10,180,000 km2 (3,930,000 sq m). - Russia is the largest country and Vatican city is the smallest country in Europe.
Kuwait- Kuwait is a country situated in Western-Asia. - the Capital city is Kuwait City. - Kuwait is the world’s richest country. - Kuwait Dinar is equivalent to 3.3252 Dollar and 2.7143 Euro. - The economy of Kuwait is a wealthy petroleum-based economy. - The Kuwaiti dinar is the highest-valued unit of currency in the world.

Question 157

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

At 3:40 pm, Find the angle between the minute hand and hour hand.

  1. AOption (a)

    120°

  2. BOption (b)

    280°

  3. COption (c)

    100°

  4. DOption (d)

    130°

View answer & explanation

Correct answer

Answer: (d)D.

130°

Why this answer is correct

We use the formula:

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

Where, M = minutes and H = hours

Here, M = 40 and H = 3

Therefore, we get angle = |(11/2) M - 30 H|

Angle = |(11/2) x 40 - 30 x 3| = |220 - 90| = 130.

Hence, the correct answer is "130°".

Question 158

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

If '+' stands for '×', '×' stands for '÷', '-' stands for '+' and '÷' stands for '-', what would be the value of the given equation.

10 + 15 × 3 - 4 ÷ 10 = ?

  1. AOption (a)

    44

  2. BOption (b)

    50

  3. COption (c)

    46

  4. DOption (d)

    47

View answer & explanation

Correct answer

Answer: (a)A.

44

Why this answer is correct

Given equation is:

10 + 15 × 3 - 4 ÷ 10 = ?

Decoding the given information:

SymbolStands for
+×
×÷
-+
÷-

 

Substituting the operations in the equation:

10 × 15 ÷ 3 + 4 - 10 = ?

BODMAS Rule:

Using the BODMAS Rule:

10 × 15 ÷ 3 + 4 - 10

= 10 × 5 + 4 - 10

= 50 + 4 - 10

= 54 - 10

= 44

Hence, the correct answer is "44".

Question 159

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

In a certain code language 'RIFA' is written as '201183' and 'RAINBOW' is written as '203111641725', then how is 'TARGET' written in that code language?

  1. AOption (a)

    203209720

  2. BOption (b)

    212200721

  3. COption (c)

    213200720

  4. DOption (d)

    223209722

View answer & explanation

Correct answer

Answer: (d)D.

223209722

Why this answer is correct

The positions of the letters according to the English alphabet series:

The pattern for this code is as follows;

And;

Similarly;

Hence, "223209722" is the correct answer.

Question 160

DSSSB Junior Assistant (LDC) 2025• Mental Ability & Reasoning 2

If CANDLE can be written as VOWMZX, how can FLAMES be written?

  1. AOption (a)

    XTUMRO

  2. BOption (b)

    LPYDMT

  3. COption (c)

    HVNZOU

  4. DOption (d)

    UOZNVH

View answer & explanation

Correct answer

Answer: (c)C.

HVNZOU

Why this answer is correct

The positions of the letters according to the English alphabet series:

The pattern for this code is as follows;

Similarly,

Hence, the correct answer is HVNZOU.

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