Verbal and non-verbal reasoning, analogies, syllogisms, number series, coding-decoding, blood relations, and analytical puzzles.
Which number should come in place of the question mark (?) to make the series logically complete?
527 524 529 522 531 ?
525
521
515
520
Correct answer
520
Why this answer is correct
The logic followed here is:
thus, "520" will replace the question mark in the given series.
Hence, the correct option is "Option 4".
Refer to the following series and answer the question that follows (all numbers are single-digit numbers only). Counting to be done from left to right only.
(Left) 3 1 7 1 2 2 9 3 5 8 9 2 4 3 2 4 4 3 5 9 4 3 3 (Right)
How many such even digits are there, each of which is immediately preceded by an even digit and also immediately followed by an even digit?
Four
Two
Three
One
Correct answer
One
Why this answer is correct
Given: (Left) 3 1 7 1 2 2 9 3 5 8 9 2 4 3 2 4 4 3 5 9 4 3 3 (Right)
Now,
Even digits, which are immediately preceded by an even digit and also immediately followed by an even digit.
So, needed pattern is: Even - Even - Even
(Left) 3 1 7 1 2 2 9 3 5 8 9 2 4 3 2 4 4 3 5 9 4 3 3 (Right)
So, total valid even digit pattern = 1
Hence, the correct answer is Option 4.
Refer to the following number series and answer the question that follows (all numbers are single-digit numbers only). Counting to be done from left to right only.
(Left) 4 9 4 8 3 3 3 1 4 7 8 7 1 7 2 9 1 3 5 1 5 9 6 4 8 4 6 (Right)
How many such odd numbers are there, each of which is immediately preceded by an odd number and also immediately followed by an odd number?
8
9
10
7
Correct answer
8
Why this answer is correct
Given: (Left) 4 9 4 8 3 3 3 1 4 7 8 7 1 7 2 9 1 3 5 1 5 9 6 4 8 4 6 (Right)
Now,
Odd numbers, which are immediately preceded by an odd number and also immediately followed by an odd number.
So, needed pattern is: Odd - Odd - Odd
(Left) 4 9 4 8 3 3 3 1 4 7 8 7 1 7 2 9 1 3 5 1 5 9 6 4 8 4 6 (Right)
So, total valid odd number patterns = 8
Hence, the correct answer is Option 1.
What will come in place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
6 ÷ 3 + 16 × 4 − 9 = ? + 5
26
24
30
28
Correct answer
28
Why this answer is correct
BODMAS Table:
Given equation: 6 ÷ 3 + 16 × 4 − 9 = ? + 5
Now, replacing the symbols as:
| Symbol | + | − | × | ÷ |
|---|---|---|---|---|
| Replaced by | − | + | ÷ | × |
⇒ 6 × 3 − 16 ÷ 4 + 9 = ? − 5
⇒ 18 − 16 ÷ 4 + 9 = ? − 5
⇒ 18 − 4 + 9 = ? − 5
⇒ 14 + 9 = ? − 5
⇒ 23 = ? − 5
⇒ ? = 23 + 5
⇒ 28
Hence, the correct answer is Option 4.
Six friends — P, Q, R, S, U and V — are sitting around a circular table, facing the centre. P is the immediate neighbour of both Q and R. R is sitting to the immediate left of U. V is sitting second to the left of P.
How many people sit between P and S, when counted from the right of S?
Three
One
Two
None
Correct answer
Two
Why this answer is correct
Given: Six friends — P, Q, R, S, U and V are sitting around a circular table facing the centre.
P is the immediate neighbour of both Q and R.
R is sitting to the immediate left of U.
V is sitting second to the left of P.
So, only Two persons sits between P and S when counted from the right of S.
Hence, the correct answer is "Option 3".
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements:
Some peas are dogs.
No dog is a cub.
Conclusions:
(I) Some peas are cubs.
(II) Some dogs are peas.
Only conclusion (II) follows.
Both conclusions (I) and (II) follow.
Only conclusion (I) follows.
Neither conclusion (I) nor (II) follows.
Correct answer
Only conclusion (II) follows.
Why this answer is correct
Given
Statements:
Some peas are dogs.
No dog is a cub.
The least possible Venn diagram for the given statement is:
Conclusions:
I. Some peas are cubs - Does not follow (No definite relationship is given between peas and cubs. They may or may not overlap).
II. Some dogs are peas - Follows (Since some peas are dogs, it definitely implies that some dogs are peas).
So, only conclusion II follows.
Hence, the correct answer is Option 1.
Refer to the following number series and answer the question that follows (all numbers are single-digit numbers only). Counting to be done from left to right only.
(Left) 3 5 6 4 4 6 2 6 5 2 8 2 8 3 6 3 1 4 8 7 3 5 2 7 3 2 3 (Right)
How many such odd numbers are there, each of which is immediately preceded by an odd number and also immediately followed by an even number?
3
6
4
5
Correct answer
4
Why this answer is correct
Given: (Left) 3 5 6 4 4 6 2 6 5 2 8 2 8 3 6 3 1 4 8 7 3 5 2 7 3 2 3 (Right)
Now,
Odd numbers which are immediately preceded by an odd number and immediately followed by an even number.
So, needed pattern is: Odd - Odd - Even
(Left) 3 5 6 4 4 6 2 6 5 2 8 2 8 3 6 3 1 4 8 7 3 5 2 7 3 2 3 (Right)
So, total valid patterns = 4
Hence, the correct answer is Option 3.
In a certain code language, ‘speak the truth’ is coded as ‘pc rd st’ and ‘truth always wins’ is coded as ‘mo st kl’. How is ‘truth’ coded in that language?
st
kl
pc
mo
Correct answer
st
Why this answer is correct
The logic followed here is to compare the given sentences and identify the common word and its corresponding common code.
Given:
speak the truth → pc rd st
truth always wins → mo st kl
So, truth → st
Hence, the correct answer is Option 1.
Seven boxes, B, D, E, P, S, T and W, are kept one over the other but not necessarily in the same order.
Only three boxes are kept above B. Only one box is kept between P and B. Only three boxes are kept between P and T. T is kept at some place above B. D is kept immediately below T. E is kept at one of the places above S. W is not kept immediately above or below P. How many boxes are kept between S and D?
Three
Two
One
Four
Correct answer
Three
Why this answer is correct
Given: Seven boxes W, T, D, B, P, E and S are kept one over the other but not necessarily in the same order.
Only three boxes are kept above B.
Only one box is kept between P and B.
Only three boxes are kept between P and T.
T is kept at some place above B.
D is kept immediately below T.
W is not kept immediately above or below P.
E is kept at one of the places above S.
| Position | Box |
|---|---|
| 1 | W |
| 2 | T |
| 3 | D |
| 4 | B |
| 5 | E |
| 6 | P |
| 7 | S |
Now, Boxes between S (7) and D (3): B (4), E (5), P (6) → 3 boxes
Hence, the correct answer is Option 1.
Prashant starts from Point A and drives 32 km towards the south. He then takes a right turn, drives 29 km, turns right and drives 43 km. He then takes a right turn and drives 54 km. He takes a final right turn, drives 11 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90-degree turns only unless specified.)
25 km to the west
26 km to the west
28 km to the east
27 km to the east
Correct answer
25 km to the west
Why this answer is correct
The logic followed here is:
Given:
Prashant starts from Point A and drives 32 km South
He turns right → 29 km West
He turns right → 43 km North
He turns right → 54 km East
He turns right → 11 km South
So, To reach Point A again, he must travel 25 km West.
Hence, the correct answer is Option 1.
Five people, L, M, N, O and P, are sitting in a row, facing towards the north.
N is sitting at third position from the extreme right end of the row. M is not an immediate neighbour of N. P is sitting to the immediate left to N. P is sitting immediate right to O.
Who is sitting between N and M?
O
N
L
P
Correct answer
L
Why this answer is correct
Given: Five people L, M, N, O and P are sitting in a row facing north.
N is sitting at third position from the extreme right end of the row.
M is not an immediate neighbour of N.
P is sitting to the immediate left of N.
P is sitting immediate right to O.
So, L is sitting between N and M.
Hence, the correct answer is "Option 3".
What should come in place of the question mark (?) in the given series?
1 2 8 16 64 ?
128
132
136
124
Correct answer
128
Why this answer is correct
The logic followed here is:
thus, "128" will replace the question mark in the given series.
Hence, the correct option is "Option 1".
Each of the digits in the number 78352416 is arranged in descending order from left to right. What will be the product of the digits that are third from the left and second from the right in the new number thus formed?
18
24
12
16
Correct answer
12
Why this answer is correct
Given number: 78352416
Logic: Arrange the digits in descending order.
Original digits: 7 8 3 5 2 4 1 6
Descending order:
| Position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Digit | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
Now,Third from the left = 6
Second from the right = 2
Required Product = 6 × 2 = 12
Hence, the correct answer is Option 3.
A, B, C, D, E and F are sitting around a circular table facing the centre. B sits third to the right of F. D sits second to the left of C. A sits third to the right of C. E sits to the immediate left of B. How many people sit between E and A when counted from the left of A?
Two
One
None
Four
Correct answer
One
Why this answer is correct
Given: A, B, C, D, E and F are sitting around a circular table facing the centre.
B sits third to the right of F.
D sits second to the left of C.
A sits third to the right of C.
E sits to the immediate left of B.
So, only one person sits between E and A when counted from the left of A.
Hence, the correct answer is "Option 2".
Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group?
(
Note:
The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
TVZ
JLP
NPV
LNR
Correct answer
NPV
Why this answer is correct
The logic followed here is based on the alphabetical position pattern:
Option 1: TVZ
Option 2: JLP
Option 3: NPV
Option 4: LNR
Thus, Options 1, 2, and 4 follow a consistent “+2, +4” pattern, while Option 3 deviates from this pattern.
Hence, the odd one out is Option 3.
In a certain code language,
‘A + B’ means ‘A is the son of B’,
‘A – B’ means ‘A is the father of B’,
‘A × B’ means ‘A is the brother of B’ and
‘A ÷ B’ means ‘A is the daughter of B’.
How is P related to R if ‘P + Q × S ÷ T – R’?
Sister’s son
Daughter’s son
Brother’s son
Mother’s brother
Correct answer
Brother’s son
Why this answer is correct
Family Chart:
Decoding the Symbols:
| Symbol | + | − | × | ÷ |
|---|---|---|---|---|
| Meaning | Son | Father | Brother | Daughter |
Given: P + Q × S ÷ T − R
It means: P is the son of Q, Q is the brother of S, S is the daughter of T, and T is the father of R.
So, P is the nephew (brother’s son) of R.
Hence, the correct answer is Option 3.
Vishal starts from Point A and drives 10 km towards south. He then takes a right turn, drives 4 km, turns right and drives 12 km. He then takes a right turn and drives 7 km. He takes a final right turn, drives 2 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again?
(All turns are 90 degrees turns only unless specified)
3 km to the east
4 km to the east
3 km to the west
4 km to the west
Correct answer
3 km to the west
Why this answer is correct
The logic followed here is:
Given:
Vishal starts from Point A and drives 10 km South
He takes a right turn → 4 km West
He takes a right turn → 12 km North
He takes a right turn → 7 km East
He takes a final right turn → 2 km South
So, To reach Point A again, he must travel 3 km West.
Hence, the correct answer is Option 3.
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
CRB ZOY WLV TIS ?
QPF
QFP
QFO
QFR
Correct answer
QFP
Why this answer is correct
The logic followed here is:
So, the missing term = QFP
Hence, the correct answer is Option 2
Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group?
(
Note:
The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)
DFA
JLP
FHC
MOJ
Correct answer
JLP
Why this answer is correct
The logic followed here is based on the alphabetical position pattern:
Option 1: DFA
Option 2: JLP
Option 3: FHC
Option 4: MOJ
Thus, Options 1, 3, and 4 follow a consistent “+2 then -5” pattern, while Option 2 follows a different “+2 then +4” pattern.
Hence, the odd one out is Option 2.
What should come in place of the question mark (?) in the given series?
16 28 42 58 76 ?
96
94
88
90
Correct answer
96
Why this answer is correct
The logic followed here is:
thus, "96" will replace the question mark in the given series.
Hence, the correct option is "Option 1".
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.