IRDAI Assistant Manager Reasoning Ability Flashcards

24 sample cards from the Reasoning Ability deck

Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.

1. What is the basic principle of letter-shift coding-decoding?

   Each letter is shifted forward or backward by a fixed number of positions in the alphabet (e.g., +1: CAT becomes DBU).

2. In coding-decoding, what is the alphabet position value of A, M, and Z?

   A = 1, M = 13, Z = 26.

3. What is the "opposite letter" (EJOTY-style reverse) of A and of B in the alphabet?

   A pairs with Z, B pairs with Y (sum of positions = 27). This is reverse/complement coding.

4. In substitution coding, how do you decode a word when each word in a sentence is replaced by a code?

   Compare sentences sharing common words to map each code to its corresponding word by elimination.

5. In an alphanumeric series, what is typically asked when given a mixed string of letters, numbers, and symbols?

   To identify elements based on conditions like "which element is 3rd to the left of the 5th from right," or count items meeting criteria (e.g., a number followed by a symbol).

6. In a symbol/number series problem, what is the first step to find the pattern?

   Find the difference (or ratio) between consecutive terms to detect addition, subtraction, multiplication, squares, or alternating patterns.

7. What is the pattern in the series 2, 6, 12, 20, 30...?

   Differences increase by 2 each time (4, 6, 8, 10); each term = n(n+1). Next term is 42.

8. In order and ranking, how do you find a person's rank from the other end given rank from one end and total?

   Rank from other end = Total - rank from given end + 1.

9. In a class of 40, if a student ranks 15th from the top, what is the rank from the bottom?

   40 - 15 + 1 = 26th from the bottom.

10. In direction sense, if you face North and turn right, then right again, which direction do you face?

    First right turn faces East, second right turn faces South.

11. What formula gives the shortest (straight-line) distance after moving along two perpendicular legs of length a and b?

    Distance = square root of (a squared + b squared), the Pythagorean theorem.

12. In direction sense, what is the shortest distance if someone walks 6 km East then 8 km North?

    Square root of (6 squared + 8 squared) = square root of 100 = 10 km (Northeast direction).

13. In direction sense, if you face South and turn left, which direction are you facing?

    East. (Facing South, left is East.)

14. In blood relations, who is your "father's brother's wife"?

    Your aunt (specifically, your uncle's wife / paternal aunt by marriage).

15. In blood relations, what relation is "mother's sister's son" to you?

    Your cousin (maternal cousin).

16. In coded blood relations, what does "A + B" commonly denote and how should you treat such symbols?

    Symbols are defined per question (e.g., + may mean 'is the father of'); always read the given symbol key and build the family tree from it.

17. In blood relations, what is your "brother's daughter" called?

    Your niece.

18. In Two-statement Data Sufficiency, what does the answer "statement I alone is sufficient but II alone is not" require?

    Statement I by itself fully answers the question, while statement II by itself cannot, regardless of I.

19. In Data Sufficiency, when is the answer "both statements together are sufficient but neither alone"?

    When neither statement alone answers the question, but combining both gives a definite, unique answer.

20. In Data Sufficiency, what does "either statement alone is sufficient" mean?

    Statement I alone answers the question AND statement II alone independently answers it too.

21. In Quantity Comparison, when do you mark "Quantity I = Quantity II"?

    Only when both quantities are computed to be exactly equal; if a relationship cannot be determined, the answer is "cannot be established / no relation."

22. In Machine Input-Output puzzles, what is the goal when given an input line and successive steps?

    To identify the rule (shifting, arranging in ascending/descending order, alternate word/number movement) applied at each step, then predict a given step or the final output.

23. In Machine Input-Output, how do you determine the number of steps to reach the final arrangement?

    Count how many elements must be moved into final position; each step typically arranges one element (or a word-number pair) until fully sorted.

24. In coded inequalities, if A > B and B > C, what can you conclude, and what does A ≥ B with B > C give?

    A > B > C means A > C (definite). For A ≥ B and B > C, you get A > C; the strict sign carries through so the conclusion is strictly greater than.

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