91) Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
DI, GO, LU, OA, TG.?
A) WM
B) WL
C) YM
D) UL
View Answer
A) WM
Explanation:Let’s analyze the series:
DI, GO, LU, OA, TG, ?
Step 1: Break down each pair into letters:
* DI → D (4th letter), I (9th letter)
* GO → G (7), O (15)
* LU → L (12), U (21)
* OA → O (15), A (1)
* TG → T (20), G (7)
We’ll look at patterns for first letters and second letters separately.
—
First letters:
D (4), G (7), L (12), O (15), T (20)
Differences:
G – D = 3
L – G = 5
O – L = 3
T – O = 5
So, alternates between +3 and +5.
Next: T + 3 = W (23)
—
Second letters:
I (9), O (15), U (21), A (1), G (7)
This seems to follow a pattern of +6:
* I (9) → O (15) → U (21) → A (1, wrapping around) → G (7)
Add 6 at each step (mod 26):
* A (1) + 6 = G (7)
* G (7) + 6 = M (13)
—
So, the next pair is:
W (23), M (13) → WM
92) The First Human Development Report was published by the United Nations Development Programme (UNDP) in the year_________
A) 1905
B) 1945
C) 1990
D) 1980
View Answer
C) 1990
93) Study the following arrangement of letters, numbers, symbols and answer the question that follows.
(Left) €A5#6λ5DPA¥8R2Z*Q9BL56%∅H2F#6 (Right)
How many such letters are there in the above series, each of which is immediately preceded by a symbol and immediately followed by a number?
A) 1
B) 3
C) 4
D) 2
View Answer
B) 3
Explanation:Let’s carefully analyze the given series again:
Series:
`€ A 5 # 6 λ 5 D P A ¥ 8 R 2 Z * Q 9 B L 5 6 % ∅ H 2 F # 6`
We are to count the letters that are:
* Immediately preceded by a symbol (like €, #, %, ∅, etc.)
* Immediately followed by a number (0–9)
—
Step-by-step analysis:
We’ll examine all triplets of the form: symbol – letter – number
Let’s scan the sequence:
⇒1. € A 5 → A is between symbol (€) and number → ✅ (1)
⇒2. # 6 λ → λ is not a letter between symbol and number → ❌
⇒3. ¥ 8 R → R is after number → ❌
⇒4. Z \* Q 9 → \* Q 9 → Q is between symbol (\*) and number → ✅ (2)
⇒5. % ∅ H 2 → ∅ H 2 → H is between symbol and number → ✅ (3)
No other triplets match.
—
✅ Final Answer: 3 letters
94) Which of the following is NOT a major factor affecting the population change in a region?
A) Occupational composition
B) Death rate
C) Birth rate
D) Migration
View Answer
A) Occupational composition
95) Select the option that is related to the fifth letter-cluster in the same way as the fourth letter-cluster is related to the third letter-cluster and the second letter-cluster is related to the first letter-cluster.
EYBRD: VBYIW:: DAJKO: WZQPL:: JEWAD: ?
A) KRESD
B) VRTYU
C) QVDZW
D) MHREA
View Answer
C) QVDZW
Explanation:We are given analogies between letter-clusters and need to find the missing fifth one:
EYBRD : VBYIW :: DAJKO : WZQPL :: JEWAD : ?
Let’s analyze the transformations.
—
⇒1. EYBRD → VBYIW
Compare each corresponding letter:
| Position | E → V | Y → B | B → Y | R → I | D → W |
| ——– | —– | —– | —– | —– | —– |
Now convert letters to positions in the alphabet:
* E (5) → V (22) → 26 – 5 + 1 = 22 → Reverse logic.
* Y (25) → B (2) → 26 – 25 + 1 = 2
* B (2) → Y (25) → 26 – 2 + 1 = 25
* R (18) → I (9) → 26 – 18 + 1 = 9
* D (4) → W (23) → 26 – 4 + 1 = 23
✅ So the transformation is:
Each letter is replaced by its reverse position in the alphabet
→ New letter = 27 – original letter’s position
—
⇒2. DAJKO → WZQPL
Check again:
* D (4) → W (23)
* A (1) → Z (26)
* J (10) → Q (17)
* K (11) → P (16)
* O (15) → L (12)
Yes, this follows the same rule: 27 – position
—
⇒3. Apply same logic to JEWAD:
Letters: J E W A D
Positions: 10 5 23 1 4
Reversed: 17 22 4 26 23 → Letters: Q V D Z W
✅ Answer: QVDZW
