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The sequence followed here is,

300 – (17 × 6) = 300 – 102 = 198,

198 – (17 × 5) = 198 – 85 = 113,

113 - (17 × 4) = 113 – 68 = 45,

45 - (17 × 3) = 45 – 51 = -6,

Similarly, we have,

-6 - (17 × 2) = - 6 – 34 = -40

Hence, ‘-40’ is the correct answer.

1. B faces the person who seat second to the right of R. 2. P is adjacent to R. 3. P does not sit any extreme end.

4. C is second to the right of D.
5. S does not seat at any of the corner. R faces A.

Hence, Case-1 is eliminated.

Hence, only one person sit between P and Q.

If a mirror is placed on the line AB, then we will get this mirror image – 

Hence, ‘option 3’ is the correct answer.

The diagram is given below,

As we know, in the morning the sun is always in the east and his shadow falls on the left of him i.e., Natasha's face was toward the north at the final position. 

Hence, **"**North" is the correct answer.

Shortcut Trick1) In the morning, Natasha was starting to walk 5 m straight.

2. She turned 45° anticlockwise direction and covered 9 m.

3) She turned 90° clockwise direction and covered 12 m.

4) She turned 45° clockwise direction and covered 7 m

5. Again, She turned 45° anticlockwise direction and covered 11 m.

Now,

the total turn = (90° clockwise + 45° clockwise) - (45° anticlockwise + 45° anticlockwise)

= 135° clockwise - 90° anticlockwise

= 45° clockwise.

So, Natasha takes one 45° clockwise turn, after starting to walk 5 m straight. And, She noticed that she is facing in the North-East direction.

That means She will be started walking from the North direction.

Hence, the correct answer is "North".

The logic follows here is :-

Similarly,

Thus, the correct answer is 'ELGBLSMZY'.

Anklets are made from Silver, which is obtained after Processing from the Ore, which in turn is taken from the Mine.

Hence the correct order is '4, 3, 5, 1, 2'.

alphabets are repeated numerically after A to Z,

A = 1, B = 2 ... Z = 26 then repeat alphabet A = 27, B = 28, C = 29 and so on multiple of 26 (A to Z).

The remainder after multiple of 26 is the next value in the series.

DC → 4² - 3² = 7 → G

HF → 8² - 6² = 28

= 26 × 1 + 2

= 2 → B

TO → 20² - 15² = 175

= 26 × 6 + 19

= 19 → S

Similarly,

ZY → 26² - 25² = 51

= 26 × 1 + 25

= 25 → Y

Hence, Y is the correct answer.

Here, 

1. In the figure 2 first vertical line, all letters +1 are done like M + 1 = N, D + 1 = E and T + 1 = U.
2. In the figure 3 second vertical line, all letters -1 are done like G - 1 = F, I - 1 = H and Z - 1 = Y.
3. In the figure 4 third vertical line, all letters +1 are done like L + 1 = M, R + 1 = S and P + 1 = Q.
4. In the figure 5 first vertical line, all letters +1 are done like N + 1 = O, E + 1 = F and U + 1 = V.

Following the same pattern, we get

Hence, option (2) is the next figure in the given sequence.

The pattern followed here is:

0² = 0

(0 + 1)2 = 1² = 1

(1 + 2)2 = 3² = 9

(3 + 3)2 = 6² = 36

(6 + 4)2 = 102 = 100

(10 + 5)2 = 152 = 225

Hence, 225 is the correct answer.

The pattern for the code is as follows:-

Similarly,

Hence, PUBLIC will be written as XSNDDJ.