Verbal and non-verbal reasoning, analogies, syllogisms, number series, coding-decoding, blood relations, and analytical puzzles.
If 9 @ 1 = 82 and 10 @ 1 = 101, what is 8 @ 2?
68
84
98
88
Correct answer
68
Why this answer is correct
Logic used here:
a @ b = a2 + b2
Check: 9 @ 1 ⇒ 92 + 12 ⇒ 81 + 1 = 82
10 @ 1 ⇒ 102 + 12 ⇒ 100 + 1 = 101
Now, 8 @ 2 ⇒ 82 + 22 ⇒ 64 + 4 ⇒ 68
∴ 8 @ 2 = 68.
What should come at the place of question mark?
3, 8, 15, 24, 35, ?
48
46
47
49
Correct answer
48
Why this answer is correct
Series:
3, 8, 15, 24, 35, ?
Check the pattern (differences):
8 − 3 = 5
15 − 8 = 7
24 − 15 = 9
35 − 24 = 11
Pattern: +2 increasing odd numbers
5, 7, 9, 11, next = 13
So next term:
35 + 13 = 48
Hence, the correct answer is 48.
If @ = +, # = -, = x, & = ÷; 8 2 @ 6 # 3 = ?
19
17
13
14
Correct answer
19
Why this answer is correct
Expression:
8 $ 2 @ 6 # 3
Replace the symbols:
8 × 2 + 6 − 3
Now apply BODMAS:
8 × 2 = 16
16 + 6 = 22
22 − 3 = 19
Hence, the correct answer is 19$.
Statements: Some pens are papers. All papers are books. Conclusions: I. Some pens are books. II. All books are pens.
Only I follows
Only II follows
Both I and II follow
Neither I nor II follows
Correct answer
Only I follows
Why this answer is correct
Statements:
Some pens are papers.
All papers are books.
From the second statement: All papers ⊆ books
From the first statement: Some pens are papers
So those pens which are papers must also be books.
👉 Conclusion I: Some pens are books — follows
👉 Conclusion II: All books are pens — does not follow (because only some pens are papers, not all books)
Hence, only conclusion I follows.
A person spends 80% of his income and saves ₹2000. What is his income?
₹8000
₹9000
₹10,000
₹7500
Correct answer
₹10,000
Why this answer is correct
Let the income be ₹x.
Given:
Person spends 80% of income
So, savings = 20% of income
Savings = ₹2000
So,
20% of income = 2000
Income × 20/100 = 2000
Income = 2000 × 100 / 20
Income = 10000
Hence, the correct answer is ₹10,000.
If 5 cats can catch 5 mice in 5 minutes, how many cats are needed to catch 100 mice in 100 min?
5
10
100
25
Correct answer
5
Why this answer is correct
Given:
5 cats catch 5 mice in 5 minutes.
This means each cat catches 1 mouse in 5 minutes.
So, in 100 minutes, one cat will catch:
100 ÷ 5 = 20 mice
Total mice = 100
Cats required = 100 ÷ 20 = 5
Hence, the correct answer is 5 cats.
If 'TIGER' is coded as '20-9-7-5-18', how will 'REGIT' be coded?
15-4-4-16-12
6-23-26-13-22
18-5-7-9-20
21-26-12-16-8
Correct answer
18-5-7-9-20
Why this answer is correct
TIGER → 20-9-7-5-18
This follows the alphabet position rule:
T = 20
I = 9
G = 7
E = 5
R = 18
👉 Rule: Write the alphabetical positions of each letter.
Now apply the same to REGIT:
R = 18
E = 5
G = 7
I = 9
T = 20
Hence, the correct answer is 18-5-7-9-20.
If MARKER is coded as NBSLFS, how is NBSLFS coded?
OCTMGT
OCSMGT
OCTMGS
OCTNGT
Correct answer
OCTMGT
Why this answer is correct
MARKER → NBSLFS
Each letter is shifted +1 forward in the alphabet:
M → N
A → B
R → S
K → L
E → F
R → S
👉 Rule: +1 shift
Now apply the same rule to NBSLFS:
N → O
B → C
S → T
L → M
F → G
S → T
Hence, the correct answer is OCTMGT.
If HELMET is coded as IFMNFU, how is IFMNFU coded?
JGNOGV
JGNNGV
JGNOGU
JGMOHV
Correct answer
JGNOGV
Why this answer is correct
HELMET → IFMNFU
Each letter is shifted +1 forward in the alphabet:
H → I
E → F
L → M
M → N
E → F
T → U
👉 Rule: +1 shift
Now apply the same rule to IFMNFU:
I → J
F → G
M → N
N → O
F → G
U → V
Hence, the correct answer is JGNOGV.
If in a code language, 'CAR' is written as 'FDW', then 'BAT' is written as?
EDY
GEX
FCX
FBY
Correct answer
EDY
Why this answer is correct
CAR → FDW
Letter shifts:
C → F (+3)
A → D (+3)
R → W (+5)
👉 Pattern followed: +3, +3, +5
Now apply the same pattern to BAT:
B → E (+3)
A → D (+3)
T → Y (+5)
Hence, the correct answer is EDY.
Choose the address that is the same as the one given below.
Sample Address: Flat No. 401, Lotus Enclave,JP Nagar, Bangalore, Karnataka - 560078
Flat 401, Lotus Enclave, JP Nagar, Bengaluru, Karnataka - 560078
Flat No. 401, Lotus Enclave, JP Nagar, Bangalore, Karnataka - 560078
Flat No. 401, Lotus Enclave, J.P. Nagar, Bangalore, Karnataka - 560087
Flat No. 410, Lotus Enclave, JP Nagar, Bangalore, Karnataka - 560078
Correct answer
Flat No. 401, Lotus Enclave, JP Nagar, Bangalore, Karnataka - 560078
Why this answer is correct
Given: Flat No. 401, Lotus Enclave,JP Nagar, Bangalore, Karnataka - 560078
Option 1) Flat 401, Lotus Enclave, JP Nagar, Bengaluru, Karnataka - 560078 → Incorrect
Option 2) Flat No. 401, Lotus Enclave, JP Nagar, Bangalore, Karnataka - 560078 → Correct
Option 3) Flat No. 401, Lotus Enclave, J.P. Nagar, Bangalore, Karnataka - 560087 → Incorrect
Option 4) Flat No. 410, Lotus Enclave, JP Nagar, Bangalore, Karnataka - 560078 → Incorrect
Hence, "Option 2" is the correct answer.
In a series of seminars held daily from 11th to 18th Feb, Calicut - 18th Feb 2022, Patna - 12th Feb 2022, Tiruchirappalli - 17th Feb 2022,
Raipur - 11th Feb 2022, Rourkela - 14th Feb 2022 Jamshedpur - 13th Feb 2022, Durgapur - 15th Feb 2022, Warangal - 16th Feb 2022
How many days after the seminar in Raipur did the seminar in Tiruchirappalli occur?
6 days
5 days
4 days
7 days
Correct answer
6 days
Why this answer is correct
According to the question:
| Seminar in city | date |
|---|---|
| Raipur | 11th Feb 2022 |
| Patna | 12th Feb 2022 |
| Jamshedpur | 13th Feb 2022 |
| Rourkela | 14th Feb 2022 |
| Durgapur | 15th Feb 2022 |
| Warangal | 16th Feb 2022 |
| Tiruchirappalli | 17th Feb 2022 |
| Calicut | 18th Feb 2022 |
Thus, 6 days after the seminar in Raipur did the seminar in Tiruchirappalli occur.
Hence, "Option 1" is the correct answer.
If 2 × 3 = 8, 3 × 4 = 15, then 4 × 5 = ?
22
20
24
23
Correct answer
24
Why this answer is correct
Given:
2 × 3 = 8
3 × 4 = 15
Pattern Used:
a × b = a × (a + 2) (when b = a + 1)
Calculation:
4 × 5 = 4 × (4 + 2)
⇒ 4 × 6
⇒ 24
∴The correct answer is option (3).
If 1 × 2 = 3, 2 × 3 = 8, 3 × 4 = 15, then 4 × 5 = ?
24
20
27
19
Correct answer
24
Why this answer is correct
logic use here:
a × b = (a × b) + a
Calculation:
1 × 2
⇒ (1 × 2) + 1
⇒ 2 + 1 = 3
2 × 3
⇒ (2 × 3) + 2
⇒ 6 + 2 = 8
3 × 4
⇒ (3 × 4) + 3
⇒ 12 + 3 = 15
4 × 5
⇒ (4 × 5) + 4
⇒ 20 + 4 = 24
∴ The correct answer is option (1).
The product of two numbers is 2025, and their HCF is 15. What is their LCM?
135
225
105
1350
Correct answer
135
Why this answer is correct
Given:
Product of two numbers = 2025
HCF = 15
Formula used:
Product of two numbers = HCF × LCM
Calculation:
⇒ 2025 = 15 × LCM
⇒ LCM = 2025 ÷ 15
⇒ LCM = 135
∴ The LCM of the two numbers = 135.
If X + Y = 2Z and Z + W = 2X, then:
X + Z = Y + W
X + Z = 2W
X + W = Y + Z
X + Z = 2Y
Correct answer
X + Z = Y + W
Why this answer is correct
Given:
X + Y = 2Z
Z + W = 2X
Formula used:
Use substitution and addition of equations
Calculation:
X + Y = 2Z
⇒ Y = 2Z − X
Z + W = 2X
⇒ W = 2X − Z
Add Y and W
⇒ Y + W = (2Z − X) + (2X − Z)
⇒ Y + W = Z + X
⇒ X + Z = Y + W
∴ The correct answer is option (1).
Choose the different one.
Linux
Intel
Windows
macOS
Correct answer
Intel
Why this answer is correct
Identify the category of each item:
Linux ⇒ Operating System
Windows ⇒ Operating System
macOS ⇒ Operating System
Intel ⇒ Processor / Hardware company
⇒ All the given options are Operating system except 'Intel', which is a hardware.
∴ The different one is Intel (Option 2).
A train takes 45 minutes to travel 60 km. What is its speed in km/h?
72 km/h
75 km/h
80 km/h
90 km/h
Correct answer
80 km/h
Why this answer is correct
Given:
Distance = 60 km
Time = 45 minutes
Formula used:
Speed = Distance ÷ Time
Calculation:
Time = 45 minutes = (45/60) = 3/4 hours
So, Speed = 60 ÷ (3/4)
⇒ Speed = 60 × 4/3
⇒ Speed = 20 × 4 = 80 km/h
∴ The speed of the train = 80 km/h.
Find the missing number: 21 : 3 :: 574 : ?
76
80
82
84
Correct answer
82
Why this answer is correct
logic used here:
Number ÷ 7
Calculation:
21
⇒ 21 ÷ 7 = 3
574
⇒ 574 ÷ 7 = 82
∴ Missing number is 82.
Which roll number has a digital root equal to 9? Digital root = sum of digits until one digit remains.
987654
888888
765431
999999
Correct answer
999999
Why this answer is correct
Given:
Digital root = Sum of digits repeatedly until one digit remains
Number = 999999
Formula used:
Digital Root = Repeated sum of digits
Calculation:
999999
⇒ 9 + 9 + 9 + 9 + 9 + 9 = 54
⇒ 5 + 4 = 9
Digital root = 9
∴ Roll number with digital root 9 = 999999.
Solving previous year questions by topic helps identify recurring concepts, question patterns, and frequently asked sub-topics. Attempt each question, review the step-by-step explanation, and note down key formulas or facts for quick revision before the exam.