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Pairs of letters in the word REMONSTRATE (in both forward and backward directions) each of which has many letters between them in the word as there are in English alphabetical order are:

There are eight pairs. They are

From forward:- MR, MT, RT, ST

From backward:- OR, NO, EM, NR

Hence, the correct answer is "8".

Logic : Consecutive decreasing multiples of (9) are subtracted from each number subsequently.

So,

325 - 54 = 271

271 - 45 = 226

226 - 36 = 190

190 - 27 = 163

163 - 18 = 145

145 - 9 = 136

Hence, "190" is the correct answer.

Table show alphabet serial number –

Given: IMPUDENT is written as PFXMHAWK

The logic followed here is,

1. First letter is subtracted by 3 and shifted to the second position and the second letter add by 3 and shifted to the first position.

2. Third letter is subtracted by 3 and shifted to the fourth position and fourth letter add by 3 and shifted to the third position.

3. And the last two letters are interchanged and decreased or increased by 3.

Similarly,

ABNORMAL = ?

‘’ABNORMAL" is coded as ‘EXRKPOOX’.

Hence, "option 1" is the correct answer.

The Correct mirror image of the given figure when the mirror is placed on the AB:

Hence, the correct answer is

Additional Information

In a mirror image, the Left changes to the right and the right changes to the left vice-versa.

When placement of mirror not given, By default we will assume it in Vertical direction.

The pattern follows here is,

The given series is a mixed series.

The first letters of a given series are increased by natural number according to the English alphabet order starting with the letter F.

The second letters of a given series are increased by natural number except one according to the English alphabet series starting with the letter R.

Hence, IW is the correct answer.

The pattern followed in the given series is:

Logic: First term × First term + 1 = Second term.

Now we apply the pattern on the given series:

For, 12 : 145

12 × 12 + 1 = 145

144 + 1 = 145

145 = 145

For, 9 : 82

9 × 9 + 1 = 82 

81 + 1 = 82

82 = 82

Similarly, 11 : ?

11 × 11 + 1 = ?

121 + 1 = 122.

Hence, the correct answer is "Option 4".

The distance and direction diagram as per the given information:

The distance between the office and her home is OD:

Pythagoras theorem:

(OD)² = (OE)² + (ED)²

Where:

OE =  60 km, ED = 80 km

(OD)2 = (60)2 + (80)²

(OD)2 = 3600 + 6400

OD = 100 km

Here, the distance between her office and home is 100 km and her office is located respect to her home in the Southwest.

Hence, the correct answer is "South-west; 100 km".

Correct option - 2 

1. Two persons were seated between A and G. E was seated second to the left of A. Neither D nor E was seated adjacent to G. 

2. F was seated second to the right of D. B and C were immediate neighbours.

Hence, case 1 is invalid 

Hence, the correct answer is Cannot be determined.

Preparing the family tree using the following symbols:

A possible tree diagram will be:

Hence, Rajesh is the father-in-law of Rajan.

Given word: 'CORNFLAKES'

After arranged in alphabetical order:

Now,

there are no alphabets that will remain unchanged if each of the letters in the word 'CORNFLAKES' is arranged in English alphabetical order.

Hence, the correct answer is "Option 3".