HCL Logical Reasoning Questions And Answers
HCL Logical Reasoning MCQs : This section focuses on "Logical Reasoning" for HCL placement drives. These Logical Reasoning MCQs are asked in previous HCL placements/recruitment exams and will help you to prepare for upcoming HCL drives.
1. If BOOK is coded as DSUS, then CHAIR is coded as
A. ELFPC
B. FLEPC
C. ELGQZ
D. FLGQZ
View Answer
Ans : C
Explanation: B-----(+2)-----D
O------(+4)----S
O-----(+6)-----U
K------(+8)----S
Similarly, CHAIR is coded as ELGQZ
2. Consider the series 6,17,39,72,?
Find the word in the place of?
A. 83
B. 89
C. 94
D. 116
View Answer
Ans : D
Explanation: The pattern is +11,+22,+33,....
so, missing term is= 72+44=116
3. Statements: All alphabets are numbers, some alphabets are digits
Conclusions:
I. At least some digits are numbers
II. No digit is a number
A. Either conclusion I or II follows
B. Neither conclusion I nor II follows
C. Only conclusion II follows
D. Only conclusion I follow
View Answer
Ans : D
Explanation: Conclusion I: At least some digits are numbers is true
Conclusion II: No digit is a number is not true
So the correct option is D.
4. Statement: K > I > T > E; O < R < K
Conclusion:
I. R < E
II. O < T
A. Neither conclusion I nor II follows
B. Both conclusions I and II follows
C. Only conclusion II follows
D. Either conclusion I or II follows
View Answer
Ans : A
Explanation: Statement: K > I > T > E; O < R < K
Conclusion I: R < E is false because no relationship can be established between R & E.
Conclusion II: O < T is also false because no relationship can be established between O & T.
Thus, neither conclusion I nor II follows. Hence option A.
5. Find wrong number in series: 12, 25, 49, 99, 187, 395, 789
A. 789
B. 187
C. 99
D. 49
View Answer
Ans : B
Explanation: 12*2+1 =25
25*2-1 = 49
49*2+1 = 99
395*2-1 = 789
6. 9848 x 125 = ?
A. 1232000
B. 1242000
C. 1231000
D. 1233000
View Answer
Ans : C
Explanation: 9848 x 125
= 9848 x 5^3
= 9848 x (10 / 2)^ 3
= 9848 x (10^3 / 2^3)
= 9848 x (1000/8)
= 1231000
7. Study the following information arrangement carefully and answer the questions given below:
Q 4 N S E # K 7 Y $ C 8 3 P I T 6 % 9 H U 2 R J * V 5 W A 1 B D G
How many such vowels are there each of which is immediately followed by a symbol?
A. 1
B. 2
C. 3
D. 4
View Answer
Ans : A
Explanation: E followed by #
8. What will come in place of (?) based on the given series?
5A* JV2 UR9 %HT ?
A. I63
B. A5J
C. PT8
D. C39
View Answer
Ans : A
Explanation: See from the right side, start from 5, take to right and left leaving one. Therefore, by analyzing you will get 163.
9. A baby crawls 12 feet towards the east and then 4 feet towards the south. He then crawls 9 feet towards west. How far is he from his initial position?
A. 2 feet
B. 9 feet
C. 5 feet
D. 16 feet
View Answer
Ans :
Explanation: 12 feet towards east.
So, imagine a path ABC from the start.
AB = 12
4 feet towards south, which means BC = 4
9 feet towards west, which means CA = 9.
The distance from his initial position will be a straight line (the Hypotenuse.)
So,
12 - 9 = 3
BC = 4.
By Pythagoras theorem
x^2 = 3^2 + 4^2 => 9 + 16 => 25
x^2 = 25
x = 5
Hence, the distance from his initial position is 5 units South-East.
10. if (HE)^H=SHE,where the alphabets take the values from (0-9) & all the alphabets are single digit then find the value of (S+H+E)?
A. 10
B. 13
C. 16
D. 19
View Answer
Ans : B
Explanation: (HE)^H must be in the range 21 to 29 so that result must
be less then 999 (3 digit ,as SHE) .so as per rule sol
is (25)^2=625. so S+H+E=6+2+5=13
Discussion