TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Mental Ability-Part 2
Simplify the following 
A)
B)
f(x) =
and g (x) = q-9x then (f o g)
(x) is
1 4
26. Convert decimal 44 to binary
A) 101100 B) 011001
C) 001 D) 100011
Answer : (A)
27. Which of the following should be avoided
as methods of presenting data?
A) spheres
and cubes
B) bars
C) pie
diagram
D) pictograms
Answer : (A)
28. For non-overlapping classes 0-19, 20-39,
40-59 the class mark of the
class 0-19 is
A) 0 B) 19
C) 9.5 D) none
Answer : (C)
29. Frequency density corresponding to a
class interval is the ratio of
A) Class
frequency to the total frequency
B) Class frequency to the class length
C) Class
length to the class frequency
D) Class frequency to the cumulative
frequency
Answer : (B)
30. In tabulation, source of the data, if
any, is shown in the
A) Foot note
B) Body
C) Stub
D) Caption
Answer : (A)
31. Indentify the missing alphabet.
B
F J P ?
A) U B) V
C) W D) X
Answer : (B)
32. The average age of members of a 4-member
family is 15 years. Twenty years from now, the average age would be
A) 20 years B) 60 years
C) 35 years D) 30 years
Answer : (C)
33. Ocean :
Pacific Atlantic India
Antartic Artic
Area (in km) : 70 41 28 8 5
The most suitable diagram to
represent the data diagrammatically is
A) Line
diagram
B) Pie diagram
C) Bar
diagram
D) Stem
diagram
Answer : (B)
34. The upper limit of class intervals is
required when we consider the formation of
A) Relative
frequency
B) More than cumulative frequency
C) Less than
cumulative frequency
D) Class frequency
Answer : (C)
35. If Cricket : Bats, the Polo : ?
A) Sticks B) Mallets
C) Poles D) Spears
Answer : (B)
36. (0.673) X (0.673) - (0.327) X (0.327)
=
1 - 0.654
A) 0.276 B) 0.354
C) 0.412 D) 1.000
Answer : (D)
37. x2
= 1
Simplify the following
x2 = 1
1 1
A)
B)
x2 x2
+ 1
1
C) x2 D) x2 + 1
Answer : (B)
38. If 2% of x is 40, then 2% of (x+50) =
A) 50 B) 401
C) 410 D) 41
Answer : (D)
39. Rate of a bike is Rs.17,000 the company gave
Rs.1700 discount to the bike. Then what is the percentage of the discount?
A) 15%
B) 25%
C) 5%
D) 10%
Answer : (D)
40. If x=y
a, y = z b, z = x c, then the value of abc is
A) 1 B) 0
C) 2 D) -1
Answer : (A)
41. A sum Rs.800 amount to Rs. 915.92 in two
years. Then the compound interest rate is
A) 6% B) 4%
C) 7% D) 8%
Answer : (C)
42. Next figure in the sequence
?
A) B)
C) D)
Answer : (A)
43. Area of a rectangle one of whose sides is
6m and diagonal 10 m is
A) 60 B) 48
C) 30 D) 68
Answer : (B)
2011
44.
1
f(x) =
and g (x) = q-9x then (f o g)
(x) is
x 2
1 1
|
|
A) e18x B) e-18x
1 1
C) e -18x2 D) e18x2
Answer : (B)
45. Standard deviation of a set of 50
observations is 6.5. If value of each observation is increase by 5, then
standard deviation is
A) 2.5 B) 6.5
C) 3.5 D) 1.0
Answer : (C)
46. A time series graph is also known as
A) Bar light B) Frequency polygon
C) Histogram D) Ogive
Answer : (A)
47. What is the value of
(0.0104 - 0.002) of 0.12 + 0.36 X
0.002 = ?
0.12 X 0.12
A) 0.1001 B) 0.1101
C) 0.12 D) 0.13
Answer : (C)
1 4
48. A =
2 -1 , f (x) = x2 - 9, then f (A) is
-8 5
0 0
A) -5 -8 B) 0
0
C) -16 D) 12
Answer : (B)
49. A bought a horse of Rs. 10,000 and sold
it to B at 10% profit and B sold
it to C at 10% loss. The
amount paid by C is
A) Rs. 10,000 B) Rs.
9,900
C) Rs. 9,999 D) Rs. 11,000
Answer : (B)
50. A graph of a cumulative frequency
distribution is called
A) ogive B) frequency polygon
C) frequency
curve D) pie diagram
Answer : (A)
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