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The logic followed here is:

Hence, "Option 2" is the correct answer.

According to the question:

A can do a job in = 12 days

B can do a job in = 18 days

A works for 3 days then B joins.

Work done by A in first 3 days = (3 × \(\frac{1}{12}\)) → \(\frac{1}{4}\)

So, work left will be = (\(1 - \frac{1}{4}\)) → \(\frac{3}{4}\)

Work done by A and B together per day = (\(\frac{1}{12}\) + \(\frac{1}{18}\)) = (\(\frac{3}{36}\) + \(\frac{2}{36}\)) → \(\frac{5}{36}\)

Days required for remaining \(\frac{3}{4}\)th work = \(\frac{\frac{3}{4}}{\frac{5}{36}}\) ⇒ \(\frac{3}{4}\) × \(\frac{36}{5}\)

= \(\frac{27}{5}\) → 5.4 days

Thus, total days to finish = 3 days (A) + 5.4 (A + B) → 8.4 days

Hence, "Option 1" is the correct answer.

Given Statement: "People who regularly exercise are less likely to fall ill."

Conclusion:

I. Regular exercise improves immunity. → True

The statement implies that regular exercise reduces the chances of falling ill.

II. Illness is directly linked to lack of physical activity. → False

The statement does not claim exercise as the only factor for illness.

Thus, Only conclusion I follows.

Hence, the correct answer is "Option 1".

Given: In a class of 88 students, girls are 5/8 of total. Rahul is 16^th from top, 12 girls ahead.

Total students → 88

Total girls → 88 × 5/8 = 55

Total boys → 88 - 55 = 33

Rahul's rank from the bottom → 16^th

So, the number of students ahead of Rahul will be → 15

Number of boys ahead of Rahul → 15 - 12(girls) = 3

Number of boys after/behind Rahul → Total boys - Number of boys ahead of Rahul - Rahul (boy)

= 33 - 3 - 1 → 29

Hence, "Option 2" is the correct answer.

Given: Five persons S, T, R, U and W are sitting in a straight line facing north.

1) S is second to the left of T. 

2) R is to the immediate right of T.

3) U is not sitting at any end.

4) W is not an immediate neighbor of S.

Thus, T is sitting in the middle.

Hence, "Option 2" is the correct answer.

Given:

North becomes South-West → 135º Anticlockwise turn from North directions.

Thus, South becomes South-East.

Hence, the correct answer is "Option 4".

The logic followed here is:

A. DATE: EXWH

B. READ: SFBE

C. FISH: GJTI

D. BOOK: CPPL

E. CARD: DBSE

Thus, out of all "DATE: EXWH" is the odd one out.

Hence, "Option 1" is the correct answer.

Given series: aabbc_aa_bb_c _ c

Option 1) cabb → aabbccaaabbbcbc → (It doesn't follow any pattern)

Option 2) acbb → aabbcaaacbbbcbc → (It doesn't follow any pattern)

Option 3) cabc → aabbccaaabbbccc → (It follows the pattern of: aa - bb - cc - aaa - bbb - ccc)

Option 4) baac → aabbcbaaabbaccc → (It doesn't follow any pattern)

Hence, "Option 3" is the correct answer.

Given Statement: Emotional intelligence enhances leadership, but without technical expertise, leaders may fail to meet organizational objectives.

Conclusion:

Conclusion I: Emotional intelligence alone is not enough for leadership success. → True

The statement directly says that without technical expertise, leaders may fail, meaning emotional intelligence alone is insufficient.

Conclusion II: Technical expertise ensures effective leadership. → False

The statement says only technical expertise is necessary along with emotional intelligence; it does not guarantee effective leadership on its own.

Thus, Only conclusion I follows.

Hence, the correct answer is "Option 2".

Given series: xy_z_y_x_yz_zyx

Option 1) zzyxz → xyzzzyyxxyzzzxy → (It doesn't follow any pattern)

Option 2) zzyyz → xyzzzyyxyyzzzyx → (It follows the pattern of: xy - zzz - yyxyy - zzz - yx)

Option 3) zxzzz → xyzzxyzxzyzzzxy → (It doesn't follow any pattern)

Option 4) zxxyz → xyzzxyxxyyzzzxy → (It doesn't follow any pattern)

Hence, "Option 2" is the correct answer.