Verbal and non-verbal reasoning, analogies, syllogisms, number series, coding-decoding, blood relations, and analytical puzzles.
Complete the series: 10, 14, 23, 39, 64, ?
71
100
52
68
Correct answer
100
Why this answer is correct
The logic followed here is:
Hence, "Option 2" is the correct answer.
A can do a job in 12 days B in 18 days. A works for 3 days then B joins. Total days to finish?
8.4 days
11 days
12 days
10 days
Correct answer
8.4 days
Why this answer is correct
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.
Read the following statement carefully and identify the conclusion that follows.
Statement:
"People who regularly exercise are less likely to fall ill."
Conclusions:
I. Regular exercise improves immunity.
II. Illness is directly linked to lack of physical activity.
Only conclusion I follows
Only conclusion II follows
Both conclusions I and II follow
Neither conclusion I nor II follows
Correct answer
Only conclusion I follows
Why this answer is correct
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".
In a class of 88 students, girls are 5/8 of total. Rahul is 16th from top, 12 girls ahead. Find number of boys after Rahul.
24
29
27
25
Correct answer
29
Why this answer is correct
Given: In a class of 88 students, girls are 5/8 of total. Rahul is 16th 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 → 16th
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.
Five persons S, T, R, U and W are sitting in a straight line facing north. S is second to the left of T. R is to the immediate right of T. U is not sitting at any end. W is not an immediate neighbor of S. Who is sitting in the middle ?
S
T
U
R
Correct answer
T
Why this answer is correct
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.
If North becomes South-West, what will West become?
North-West
East
North-East
South-East
Correct answer
South-East
Why this answer is correct
Given:
North becomes South-West → 135º Anticlockwise turn from North directions.
Thus, South becomes South-East.
Hence, the correct answer is "Option 4".
Four of the following five are alike in a certain way and hence form a group. Which is the one that does not belong to that group?
A. DATE: EXWH
B. READ: SFBE
C. FISH: GJTI
D. BOOK: CPPL
E. CARD: DBSE
BOOK : CPPL
CARD: DBSE
DATE: EXWH
READ: SFBE
Correct answer
DATE: EXWH
Why this answer is correct
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.
Observe the following incomplete letter sequence carefully
aabbc_aa_bb_c _ c.
A specific pattern governs the order and repetition of the letters. Choose the option that best fills the blanks (in order) to complete the sequence logically and symmetrically.
cabb
acbb
cabc
baac
Correct answer
cabc
Why this answer is correct
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.
Statement:
Emotional intelligence enhances leadership, but without technical expertise, leaders may fail to meet organizational objectives.
Conclusion I: Emotional intelligence alone is not enough for leadership success.
Conclusion II: Technical expertise ensures effective leadership.
Which conclusion follows?
Only conclusion II follows
Only conclusion I follows
Neither conclusion I nor II follows
Both conclusion I and II follow
Correct answer
Only conclusion I follows
Why this answer is correct
**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".
Observe the following incomplete letter sequence carefully. A specific pattern governs the order and repetition of the letters. Choose the option that best fills the blanks to complete the sequence logically and symmetrically.
xy_z_y_x_yz_zyx
zzyxz
zzyyz
zxzzz
zxxyz
Correct answer
zzyyz
Why this answer is correct
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.
A man walks 3 km west, then turns north and walks 4 km. How far is he from the starting point?
6 km
7 km
4 km
5 km
Correct answer
5 km
Why this answer is correct
Given:
A man walks 3 km west, then turns north and walks 4 km.
By applying the Pythagoras Theorem:
(AB)2 = (AC)2 + (BC)2
(AB)2 = (4)2 + (3)2
(AB) = √(16 + 9)
(AB) = √(25)
(AB) = 5 km
Thus, the man is 5 km far from the starting point.
Hence, the correct answer is "Option 4".
Six friends A, B, C, D, E, and F are sitting in a row. C is sitting to the immediate right of A. D is not at any end. B is sitting between D and E. F is sitting at one of the ends. D is not an immediate neighbor of neither A nor F. Who is sitting to the immediate left of B?
A
F
D
E
Correct answer
D
Why this answer is correct
Given: Six friends A, B, C, D, E, and F are sitting in a row.
1) F is sitting at one of the ends.
Case 1)
Case 2)
2) D is not at any end.
3) B is sitting between D and E.
4) C is sitting to the immediate right of A.
4) D is not an immediate neighbor of neither A nor F.
Case 1)
Case 2)
Thus, D is sitting to the immediate left of B.
Hence, "Option 3" is the correct answer.
A can do a job in 10 days and B can do it in 15 days. If they work together, how long will it take them to complete the job?
5 days
6 days
8 days
9 days
Correct answer
6 days
Why this answer is correct
According to the question:
A can do a job in = 10 days
B can do a job in = 15 days
Work done by A and B together per day = (\(\frac{1}{10}\) + \(\frac{1}{15}\)) = (\(\frac{3}{30}\) + \(\frac{2}{30}\)) → \(\frac{1}{6}\)
Time taken to finish the work together = 1 ÷ Combined work rate.
= 1 ÷ \(\frac{1}{6}\) → 6 days
Hence, "Option 2" is the correct answer.
In the following question, which one set of letters and numbers, when sequentially placed in the blanks of the given letter-number series, will complete it logically?
u_v_w_35x_40y_45z_50
28, 45, 31, 67, 39, 89
21, 22,30, 36, 41, 45
20, 25, 30, 36, 41, 46
30, 67, 32, 56, 38, 45
Correct answer
20, 25, 30, 36, 41, 46
Why this answer is correct
The logic followed here is:
Hence, "Option 3" is the correct answer.
Alternate Method
Read the following statements and conclusions carefully. Assume that the statements are absolutely true, even if they contradict common knowledge. Based only on the given information, determine which of the conclusions logically follow.
Statements:
All engineers are smart.
Some smart people are creative.
No creative person is dull.
Conclusions:
(1) Some smart people are not dull. (2) Some engineers are creative. (3) Some dull people are smart. (4) No engineer is dull.
Only (1) follow
All (1), (2), (3), and (4) follow
Only (1) and (2) follow
Only (1), (3), and (4) follow
Correct answer
Only (1) follow
Why this answer is correct
The least possible Venn diagram for the given statements is as shown below :
Conclusions:
(1) Some smart people are not dull. → Follow (As some smart people are creative and no creative person is dull. So some part of smart is common with creative which cannot be dull, therefore it s true)
(2) Some engineers are creative. → Does not follow (As all engineers are smart and some smart people are creative. So it is possible but nit definite)
(3) Some dull people are smart. → Does not follow (As some smart people are creative and no creative person is dull. So it is possible but nit definite)
(4) No engineer is dull. → Does not follow (As all engineers are smart, some smart people are creative and no creative person is dull. So no direct relation is given between engineers and dull, therefore it is false.)
∴ Here, Only (1) follow.
Hence, the correct answer is "Option 1".
Introducing a boy, a girl said, "He is the son of the daughter of my father's brother." How is the boy related to the girl?
Brother
Nephew
Cousin
Uncle
Correct answer
Nephew
Why this answer is correct
Given: Introducing a boy, a girl said, "He is the son of the daughter of my father's brother."
Thus, the boy is girl's nephew.
Hence, the correct answer is "Option 2".
Eligibility criteria:
The candidate must be B.Sc. graduate with at least 60% marks.
The candidate must have completed M.Sc.
The candidate must be below 28 years of age as on 01-01-2017
Candidate with the prior experience will be given preference.
If the candidate is otherwise eligible, but has no work experience, the case shall be referred to the principal.
If the candidate satisfies all the above criteria, he/she should be selected.
If the information is inadequate, mark the decision as "Information inadequate"
Neeraj is a B.Sc. graduate with 65% marks. He has completed M.Sc. but has no work experience. He is willing to undergo a probation period of one year. Age: 26 years as of 2017.
What decision should be taken?
Select the candidate
Refer to Vice Principal
Information inadequate
Refer to Principal
Correct answer
Refer to Principal
Why this answer is correct
The conditions are as follows:
| Eligibility criteria | Fulfillment |
|---|---|
| The candidate must be B.Sc. graduate with at least 60% marks. | Yes, Neeraj is a B.Sc. graduate with 65% marks. |
| The candidate must have completed M.Sc. | Yes, Neeraj has completed M.Sc. |
| The candidate must be below 28 years of age as on 01-01-2017 | Yes, Neeraj 26 years as of 2017. |
| Candidate with the prior experience will be given preference. | No, Neeraj has no work experience. |
| If the candidate is otherwise eligible, but has no work experience, the case shall be referred to the principal. | Applicable |
| If the candidate satisfies all the above criteria, he/she should be selected. | Not applicable |
| If the information is inadequate, mark the decision as "Information inadequate" | Not applicable |
Thus, Neeraj will be referred to the principal.
Hence, "Option 4" is the correct answer.
A says to B, "You are the daughter of the only son of my father." How is A related to B?
Father
Uncle
Aunt
Mother
Correct answer
Father
Why this answer is correct
Given: A says to B, "You are the daughter of the only son of my father."
Thus, A is B's father.
Hence, the correct answer is "Option 1".
The sum of two consecutive odd numbers is 24. what is the larger number?
15
17
11
13
Correct answer
13
Why this answer is correct
Given: Sum of two consecutive odd numbers is 24.
Let the 2 consecutive odd numbers be = (p) and (p + 2)
According to the question:
p + (p + 2) = 24
2p + 2 = 24
2p = 22
p = 11
So, putting the value of 'p'
11 + 2 = 13
∴ The two consecutive odd numbers are 11 and 13.
Thus, the larger odd number is 13.
Hence, "Option 4" is the correct answer.
If + means -, ÷ means +, - means x, and x means ÷, then, what is 25 - 3 ÷ 5 +10 ?
65
70
75
80
Correct answer
70
Why this answer is correct
Decoding signs:
| Sign | + | ÷ | - | × |
|---|---|---|---|---|
| Stands For | - | + | × | ÷ |
Given: 25 - 3 ÷ 5 +10 = ?
25 - 3 ÷ 5 +10 = ? ⇒ 25 × 3 + 5 - 10 = ?
⇒ 25 × 3 + 5 - 10 = ?
⇒ 75 + 5 - 10 = ?
⇒ 80 - 10 = ?
⇒ 70 = ?
Hence, "Option 2" is the correct answer.
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.