The reasoning is the most scoring section in any competitive exam. It also develops or nourishes our critical thinking skills as compared to other subjects. In DSSSB,KVS Exam, As a student to score well in this part, you have to start your preparation now because there is negative marking as well. The more you have prepared, the better you score.
Q1.Find the odd number pair from the given alternatives
(a) 1 : 8
(b) 27 : 64
(c) 125 : 218
(d) 343 : 512
Q2.Arrange the following words as per order in the dictionary
1. Follicle
2. Folk
3. Follow
4. Foliage
(a) 4, 2, 1, 3
(b) 3, 4, 2, 1
(c) 4, 3, 1, 2
(d) 2, 4, 3, 1
Q3.A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
8, 15, 28, 53, ?
(a) 106
(b) 100
(c) 108
(d) 102
Q4.A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
WFB, TGD, QHG, ?
(a) NIL
(b) NIK
(c) NLK
(d) NJL
Q5.The average age of 19 boys in a class is 21 years. If the teacher’s age is included, the average increases to 22 years. What is the teacher’s age?
(a) 39 years
(b) 41 years
(c) 40 years
(d) 44 years
Q6.A man is 3 years older than his wife and four times as old as his son. If the son becomes 15 years old after 3 years. Then what is the present age of the wife?
(a) 60 years
(b) 51 years
(c) 48 years
(d) 45 years
Q7.From the given alternative words, select the word which cannot be formed using the letter of the given word: UNIVERSALISATION
(a) NATION
(b) CURTAIN
(c) LIVER
(d) AVIATION
Q8.If FRIEND is coded as HTKGPF then REVEAL will be coded as:
(a) TGXFCN
(b) TGXNGC
(c) TXGNCG
(d) TGXGCN
Q9.Which of the following interchange of signs would make the equation correct?
5 + 3 × 8 – 12 ÷ 4 = 3
(a) – and ÷
(b) + and x
(c) + and ÷
(d) + and –
Q10.Select the correct combination of mathematical signs to replace * signs and to balance the equation.
48 * 4 * 6 * 3 * 30
(a) -,+, =, x
(b) ÷, =, x, +
(c) ÷, +, x, =
(d) -,=, x, +
Solutions:
S1.Ans.(c)
Sol. Except 125:218, all follow a pattern of x3: (x+1)3
S2.Ans.(a)
Sol. Order according to dictionary:
4. Foliage, 2. Folk , 1. Follicle , 3. Follow
S3.Ans.(d)
Sol. 8 × 2 – 1 = 15
15 × 2 – 2 = 28
28× 2 – 3 = 53
53 × 2 – 4 = 102
S5.Ans.(b)
Sol. Sum of age of 19 boys = 19 × 21 = 399
Let teacher’s age = x
(399 + x)/20 = 22
x = 41
Teacher’s age = 41 years
S6.Ans.(d)
Sol. Let son’s age = x
After 3 years, x+ 3 = 15
x = 12
Men’s age = 4x = 4 × 12 = 48
So, wife’s age = 48 – 3 = 45 years
S7.Ans.(b)
Sol. CURTAIN cannot be formed using the letter of UNIVERSALISATION, because it does not contain “C”.
S8.Ans.(d)
Sol.
Same pattern follow in REVEAL.
S9.Ans.(a)
Sol. After interchange – and ÷:
=5 + 3 × 8 ÷ 12 – 4
=3
S10.Ans.(c)
Sol. By option(c)
48 * 4 * 6 * 3 * 30
48 ÷ 4 + 6 × 3 = 30
30 = 30
