Reasoning Questions For DSSSB/HSSC Exam | 17th October 2019

Q1. In each of the following questions, which one of the given responses would be a meaningful order of the following?
Infancy
Childhood
Adulthood
Babyhood
Adolescence
(a) 1, 4, 2, 5, 3
(b) 1, 3, 5, 2, 4
(c) 1, 2, 3, 4, 5
(d) 1, 4, 5, 2, 3

Q2. A is the mother of D and sister of B. B has the daughter C who is married to F. G is the husband of A. how is G related to D?
(a) uncle
(b) Husband
(c) Son
(d) Father

Q3. If CLOCK is written as KCOLC, how STEPS can be written in that code?
(a) SPEST
(b) SEPTS
(c) SPETS
(d) SPSET

Q4. If room is called bed, bed is called window, window is called flower and flower is called cooler, on what would a man sleep?
(a) Cooler
(b) Window
(c) Bed
(d) Flower

Q5. 
3 15 4
7 38 5
3 ? 5
(a) 18
(b) 15
(c) 19
(d) 20

Q6. 
9 10 11
5 7 8
19 22 ?
(a) 41
(b) 25
(c) 24
(d) 19

Q7. In a row of children, A is 9th from the left and B is fifth from right. When A and B inter-change their positions A will be 18th for the left. What will be B’s position form the right?
(a) 14
(b) 9
(c) 5
(d) 18

Q8. A father’s age is now three times that of his elder daughter. Five years back, his age was eight times that of his younger daughter. If the difference of ages of the two daughters is 5 years, what is the age of the father now?
(a) 55
(b) 50
(c) 60
(d) 45

Q9. Some equations are solved on the basis of certain system. Find out the correct answer for the unsolved equation on that basis 2 × 3 × 7 = 4949, 5 × 9 × 4 = 258116, 4 × 6 × 8 = ?
(a) 163664
(b) 16128
(c) 81216
(d) 162432

Q10. A solid red coloured cube is painted yellow on all sides. The cube is cut into 125 equal cubes. How many sides will have 3 sides yellow?
(a) 10
(b) 4
(c) 8
(d) 12

S1. Ans.(a)
Sol.
Meaningful order of the words:
(i) Infancy
       ↓
(ii) Babyhood
       ↓
(iii) Childhood
       ↓
(iv) Adolescence
       ↓
(v) Adulthood

S2. Ans.(d)
Sol.
G is the husband of A.
A is the mother D.
Hence, G is the father of D.

S3. Ans.(c)
Sol.

S4. Ans.(b)
Sol.
Man sleeps on bed. Here, bed is called window.

S5. Ans.(a)
Sol.
First number × Third number + 3 = Middle number in each row.
First Row
3 × 4 + 3 = 12 + 3 = 15
Second Row
7 × 5 + 3 = 35 + 3 = 38
Third Row

S6. Ans.(c)
Sol.
In each column the lower-most number is 5 more than the sum of the first tow numbers.
First column
9 + 5 + 5 = 19
Second Column
10 + 7 + 5 = 22
Third Column
11 + 8 + 5 = 24

S7. Ans.(a)
Sol.

Total number of children in the row = 18 + 5 – 1 = 22
B’s position from the right after interchanging the position with
A = 22 – 9 + 1 = 14th

S8. Ans.(d)
Sol.
Suppose the present age of younger daughter is x years.
∴ Present age of the elder daughter = x + 5 years
Present age of the father
= 3(x + 5) years.
According to the question,
8(x –5) = 3x + 15 –5 or, 8x – 40 = 3x + 10
Or, 8x – 3x = 10 + 40
∴ x=50/5=10 years
Present age of father
= 3 × 10 + 15 = 45 years.

S9. Ans.(a)
Sol.

S10. Ans.(c)
Sol.

In Layer-I, the nine central cubes have only one face painted, four cubes at the corner have three faces painted and the remaining 12 cubes have two faces painted.
In each of the Layer-II, III and IV, the nine central cubes have no face painted, the four cubes at the corner have two faces painted and the remaining 12 cubes have one face painted.
In Layer-V, the nine central cubes have only one face painted; the four cubes at the corner have three faces painted.
Thus, the number of cubes having three faces painted = 4 + 4 = 8

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