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Given Sign Interchanges:

Original Equation:

3 ÷ 5 + 16 × 8 − 8 = ?

Replacing the signs according to the interchange rules:

= 3 × 5 − 16 ÷ 8 + 8 

= 3 × 5 - 2 + 8

= 15 - 2 + 8

= 23 - 2

= 21

Therefore, the value that will come in place of '?' is 21.

Hence, the correct answer is "Option 2".

Logic followed here is based on the directional path taken by Natesh from his starting position to his final position.

Step-by-step Movement:

• Natesh starts at Point Y.
• He drives 58 km towards East.
• He takes a left turn (which is towards the North) and drives 28 km.
• He turns left (which is towards the West) and drives 40 km.
• He takes another left turn (which is towards the South) and drives 71 km.
• Finally, he takes a right turn (which is towards the West) and drives 18 km to reach Point Z.

Therefore, he should drive 43 km towards north to reach point Y.

Hence, the correct answer is "Option 2".

Logic followed here is.

Logic: The code for a specific letter is determined by identifying common letters and their corresponding common digits across different coded words.

Analysis of the given codes:

GODS is coded as '7642'

DIVE is coded as '1357'

Therefore, the code for 'D' is 7.

Hence, the correct answer is "Option 3".

Logic followed here is the comparison of words and their corresponding codes to identify the unique digit assigned to each letter.

For

KEPT is coded as '7523'

OKAY is coded as '4136'

Therefore, the code for 'K' is 3.

Hence, the correct answer is "Option 1".

Logic followed here is.

Logic: The series follows an alternating addition pattern where the numbers 11 and 5 are added to consecutive terms to find the next number.

Therefore, the number that should come in place of ‘?’ in the series is 67.

Hence, the correct answer is "Option 4".

Deciphering the given code:

Calculation of the Equation:

Given equation: 3 B 2 D 12 A 4 C 3 = ?

Substituting the symbols:

= 3 × 2 − 12 ÷ 4 + 3

= 3 × 2 - 3 + 3

= 6 - 3 + 3

= 6

Therefore, the correct value in place of the question mark is 6.

Hence, the correct answer is "Option 1".

The logic followed here is:

Position of Rajdeep from the top = 64^th

Position of Rajdeep from the bottom = 23^rd

To find the total number of students in the class, the following formula is used:

Total number of students = (Position from top + Position from bottom) − 1

= (64 + 23) − 1

= 87 − 1

= 86

So, there are 86 students in the class.

Hence, the correct answer is 'Option 2'.

Given Series:

(Left) M M C R V I K Z J N L U W X W F O Y X F G (Right)

Required pattern:

Vowel → Consonant → Vowel

Checking the series:

(Left) M M C R V I K Z J N L U W X W F O Y X F G (Right)

There is no consonant which is immediately preceded by a vowel and immediately followed by a vowel.

Consonants satisfying the condition:

→ None

Therefore, there are 0 such consonants.

Hence, the correct answer is "Option 2 — None".

The logic followed here is

Logic: The letters in each cluster are consecutive, and the letters of the second cluster are each 4 positions ahead of the corresponding letters in the first cluster.

Option 1)  AB-EF,

A + 4 = E; B + 4 = F. (AB and EF are both consecutive letter pairs).

Option 2) NO-RS,

N + 4 = R; O + 4 = S. (NO and RS are both consecutive letter pairs).

Option 3) XY-AE

X + 4 = B ≠ A; Y + 4 = C ≠ E. Also, A and E are not consecutive letters.

This pair does not follow the rule.

Option 4) JK-NO,

J + 4 = N; K + 4 = O. (JK and NO are both consecutive letter pairs).

Therefore, the letter-cluster pair that is different from the others is XY-AE.

Hence, the correct answer is 'Option 3'.

Based on the given information, we can determine the seating arrangement of seven people A, V, C, L, E, K, and N sitting in a row facing North.

Key Points

1. Position of E: Only four people sit to the left of E. This implies E is at the 5^th position from the left.

2. Position of L: Only four people sit to the right of L. This implies L is at the 3^rd position from the left.

3. Position of K: Only one person sits between K and L. Since E is already at the 5^th position, K must be at the 1^st position.

4. Position of V and A: V sits to the immediate left of A. We need two consecutive vacant seats. The available positions are 2, 4, 6, and 7. The only consecutive pair is 6 and 7. Thus, V is at the 6^th position and A is at the 7^th position.

5. Position of C and N: C does not sit to the left of N, which means C sits to the right of N. The remaining positions are 2^nd and 4^th. Therefore, N must be at the 2^nd position and C must be at the 4^th position.

Seating Arrangement:

Therefore, A sits third to the right of C.

Hence, the correct answer is "Option 4".