## Tuesday, 15 July 2014

### TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Mental Ability-Part 2

TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Mental Ability-Part 2

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)