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Question 281

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

CMZ 3 HRE 6 MWJ 9 RBO 12 ?

  1. AOption (a)

    KDT 15

  2. BOption (b)

    SPR 16

  3. COption (c)

    WGT 15

  4. DOption (d)

    NDY 18

View answer & explanation

Correct answer

Answer: (c)C.

WGT 15

Why this answer is correct

The logic follows here, 

Hence, the correct answer is "Option 3".

Question 282

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

In a certain code language,

A ! B means ‘A is the wife of B’,

A > B means ‘A is the sister of B’,

A = B means ‘A is the father of B’ and

A − B means ‘A is the son of B’.

How is N related to E if ‘N > U − R ! S = E’?

  1. AOption (a)

    Sister's daughter

  2. BOption (b)

    Daughter's sister

  3. COption (c)

    Sister

  4. DOption (d)

    Daughter

View answer & explanation

Correct answer

Answer: (c)C.

Sister

Why this answer is correct

Family Chart:

Let us first decode the given symbols and then draw a family tree.

Symbol!>=-
MeaningWifeSisterFatherSon

Given : N > U − R ! S = E

From the family tree, it is clear that R and S are parents of N, U, and E. Since N is female, she is the sister of both U and E.

Hence, the correct answer is 'Option 3'.

Question 283

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

What should come in place of the question mark (?) in the given series based on the English alphabetical order?

UWS OQM IKG CEA ?

  1. AOption (a)

    WZT

  2. BOption (b)

    WXZ

  3. COption (c)

    WXT

  4. DOption (d)

    WYU

View answer & explanation

Correct answer

Answer: (d)D.

WYU

Why this answer is correct

The logic follows here, 

Hence, the correct answer is "option 4"

Question 284

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Select the set in which the numbers are related in the same way as are the numbers of the following sets.

(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

(13, 33, 5)

(6, 40, 19)

  1. AOption (a)

    (20, 37, 12)

  2. BOption (b)

    (8, 46, 22)

  3. COption (c)

    (9, 39, 15)

  4. DOption (d)

    (17, 33, 10)

View answer & explanation

Correct answer

Answer: (c)C.

(9, 39, 15)

Why this answer is correct

The logic followed here is:

Logic: Second Number = First Number + Third Number + 15

For the first set (13, 33, 5)

⇒ 13 + 5 + 15

⇒ 18 + 15 = 33.

For the second set (6, 40, 19)

⇒ 6 + 19 + 15

⇒ 25 + 15 = 40.

Applying the same logic to the correct set (9, 39, 15)

⇒ 9 + 15 + 15

⇒ 24 + 15 = 39.

Hence, the correct answer is 'Option 3'.

Question 285

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

G is the sister of Y. Y is the brother of J. M is the father of W. W is the son of J. How is G related to M?

  1. AOption (a)

    Mother

  2. BOption (b)

    Sister

  3. COption (c)

    Wife's mother

  4. DOption (d)

    Wife's sister

View answer & explanation

Correct answer

Answer: (d)D.

Wife's sister

Why this answer is correct

Family Chart:

The family tree diagram, 

​From the family tree, it is evident that G is the sister of J, and J is the wife of M. Therefore, G is the Wife's sister of M.

Hence, the correct answer is 'Option 4'.

Question 286

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Based on the English alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that does not belong to that group?

(Note: The odd man out is not based on the number of consonants/vowels or their position in the letter cluster.)

  1. AOption (a)

    GFI

  2. BOption (b)

    BAD

  3. COption (c)

    NMP

  4. DOption (d)

    VUY

View answer & explanation

Correct answer

Answer: (d)D.

VUY

Why this answer is correct

The logic follows here, 

Logic: Second letter = First letter − 1; Third letter = Second letter + 3.

For GFI,

For BAD,

For NMP,

For VUY,

 

This letter cluster does not follow the rule.

Therefore, the letter cluster that is different from the others is VUY.

Hence, the correct answer is 'Option 4'.

Question 287

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

LPBF is related to QUGK in a certain way based on the English alphabetical order. In the same way, FJVZ is related to KOAE. To which of the following options is UYKO related, following the same logic?

  1. AOption (a)

    ZOPT

  2. BOption (b)

    ZDTP

  3. COption (c)

    ZDPT

  4. DOption (d)

    ZTPO

View answer & explanation

Correct answer

Answer: (c)C.

ZDPT

Why this answer is correct

The logic followed in this pattern is a constant shift in the English alphabetical order.

For 'LPBF' related to 'QUGK':

L(12)P(16)B(2)F(6)
+5 ↓+5 ↓+5 ↓+5 ↓
Q(17)U(21)G(7)K(11)

For 'FJVZ' related to 'KOAE':

F(6)J(10)V(22)Z(26)
+5 ↓+5 ↓+5 ↓+5 ↓
K(11)O(15)A(1)E(5)

Applying the same logic to 'UYKO':

U(21)Y(25)K(11)O(15)
+5 ↓+5 ↓+5 ↓+5 ↓
Z(26)D(4)P(16)T(20)

Thus, UYKO is related to ZDPT.

Hence, the correct answer is 'Option 3'.

Question 288

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

TJ 12 is related to VF 4 in a certain way. In the same way, HE 10 is related to JA 2. To which of the following is DR 5 related, following the same logic?

  1. AOption (a)

    FN -3

  2. BOption (b)

    HJ 9

  3. COption (c)

    JI -7

  4. DOption (d)

    VH -6

View answer & explanation

Correct answer

Answer: (a)A.

FN -3

Why this answer is correct

The logic follows here, 

For TJ 12 is related to VF 4,

For, HE 10 is related to JA 2

Applying the same logic to DR 5:

The term related to DR 5 is FN −3.

Hence, the correct answer is 'Option 1'.

Question 289

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete?

JUC55 , OZH67 , TEM79 , YJR91 , ?

  1. AOption (a)

    LOW103

  2. BOption (b)

    DOW103

  3. COption (c)

    DEW103

  4. DOption (d)

    DOX103

View answer & explanation

Correct answer

Answer: (b)B.

DOW103

Why this answer is correct

The logic follows here, 

By combining the results, the missing cluster is DOW103.

Hence, the correct answer is "Option 2".

Question 290

RRB NTPC 2026• General Intelligence and Reasoning• General Intelligence and Reasoning

If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, what will come in place of the question mark ‘?’ in the following equation?

10 A 2 C 35 B 2 = ? C 20

  1. AOption (a)

    45

  2. BOption (b)

    50

  3. COption (c)

    35

  4. DOption (d)

    55

View answer & explanation

Correct answer

Answer: (d)D.

55

Why this answer is correct

BODMAS rule:

Operator conversion:

ABCD
÷×+−

 

After replacing and using BODMAS rule:

⟹ 10 ÷ 2 + 35 × 2 = ? + 20

⟹ 5 + 35 × 2 = ? + 20

⟹ 5 + 70 = ? + 20

⟹ 75 =  ? +  20

? = 55

The value of the question mark is 55.

Hence, the correct answer is "option 4"