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BODMAS Table:

On interchanging each option one by one,

 

1. 2 and 6L.H.S = (28 ÷ 4) × 2 + 14 × 3 − 7 × 9 + (66 ÷ 6) + 38

= 7 × 2 + 42 − 63 + 11 + 38

= 14 + 42 − 63 + 11 + 38

= 56 − 63 + 11 + 38

= −7 + 11 + 38

= 42 ≠ 67 (R.H.S)

 

Option 2) 2 and 3

(28÷4) × 6 + 14 × 2 − 7 × 9 + (66 ÷ 3 ) + 38 = 67

L.H.S = 7 × 6 + 14 × 2 − 63 + 22 + 38

= 42 + 28 − 63 + 22 + 38

= 70 − 63 + 22 + 38

= 7 + 22 + 38

= 67 = 67 (R.H.S)

 

3. (28 ÷ 4 ) × 3 + 14 × 6 − 7 × 9 + (66÷2) + 38 = 67

L.H.S = 7 × 3 + 14 × 6 − 63 + 33 + 38

= 21 + 84 − 63 + 33 + 38

= 105 − 63 + 33 + 38

= 42 + 33 + 38

= 113 ≠ 67 (R.H.S)

 

4. 4 and 7

L.H.S = (28÷7) × 6 + 14 × 3 − 4 × 9 + (66 ÷ 2) + 38 = 67

= 4 × 6 + 42 − 36 + 33 + 38

= 24 + 42 − 36 + 33 + 38

= 66 − 36 + 33 + 38

= 30 + 33 + 38

= 101 ≠ 67 (R.H.S)

 

Since LHS = RHS, the equation is correct after interchanging 2 and 3.

Hence, the correct answer is "option 2"

**Given:**Seven boxes, B, C, D, E, Q, R and S, are kept one over the other, but not necessarily in the same order.

1. Only one box is kept above E.
2. B is kept immediately above E.
3. Only two boxes are kept between C and E.

1. Only Q is kept immediately below S.
2. D is kept at some place below B and at some place above R.

Final Arrangement:

There are four boxes (E, D, R, and C) kept between B and S.

Hence, the correct answer is 'Option 3'.

The logic follows here, 

MJ 8 is related to OM -6,

RW 12 is related to TZ -2,

Applying to the same logic ,  UR 1 related to WU −13,

Thus, UR 1 is related to WU −13.

Hence, the correct answer is 'Option 4'.

The logic followed here is.

Therefore, the code for T is 1.

Hence, the correct answer is "option 3"

BODMAS Table:

According to the question, the symbols represent:

 

Given Equation: 81 A 3 D 7 B 2 C 16 = ?

After replacement and following BODMAS rule,

= 81 ÷ 3 − 7 × 2 + 16

= 27 − 7 × 2 + 16

= 27 + 16 − 14 

= 43 − 14

= 29

Hence, the correct answer is "option 4"

The logic followed here is,

 

The resulting term is QNS.

Hence, the correct answer is "option 3"

The logic followed in this pattern is a series of alphabetical shifts based on the positional values of the letters.

For 'QVI' related to 'KZJ':

For 'USH' related to 'OWI':

Applying the same logic to 'LQG':

Thus, LQG is related to FUH.

Hence, the correct answer is 'Option 1'.

Preparing the family tree diagram by using the following symbols:

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

Given: B % C ? O € P = X

Therefore, B is the daughter of O, and O is the brother of X (since both are children of P and O is male). Thus, B is the Brother's daughter of X.

Hence, the correct answer is 'Option 3'.

The logic followed here is,

Similarly, the next term in the series is JLH.

Hence, the correct answer is "option 3"

BODMAS Table:

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

 

Given: L # I G @ H & T

 

From the family tree, it is evident that I is the father of G, H, and T. Since L is the wife of I, she is the mother of all his children.

Therefore, L is the Mother of T.

Hence, the correct answer is 'Option 4'.