Data Interpretation Practice Test
Directions(1-5): Study the following table carefully and answer the questions given below it.
Number of candidates from different locations appeared and passed in a competitive examination over the years
1.For the candidates from which of the following locations was there continuous increase both in appeared and passed ?
a)Metropolises
b)State-capital & Rural
c)Semi-urban
d)State-capital
e)None of these
2.In which of the following years was the percentage qualified to appeared candidates from Semi-urban area the least ?
a)1990
b)1991
c)1992
d)1993
e)1994
3.Approximately what was the percent drop in the number of Semi-urban candidates appeared from 1991 to 1992 ?
a)14%
b)5%
c)9%
d)20%
e)None of these
4.In 1993 the percentage of candidates qualified to appeared was approximately 35 from which location ?
a)Rural and Semi-urban
b)Semi-urban and Metropolises
c)Rural and Metropolises
d)Rural
e)None of these
5.The total number of candidates qualified from Rural in 1993 and Semi-urban in 1990 was exactly equal to the total number of candidates qualified from State-capitals in which of the following years ?
a)1994
b)1991
c)1990
d)1993
e)1991
Directions(6-10): Study the following table carefully and answer the given questions.
Number of calculators manufactured by five different companies in the given years (in thousand) and percentage of defective pieces.
Note:
N = Total number of calculators manufactured
M = Percentage of defective pieces
6.What is the difference between the number of non-defective calculators manufactured by companies S and T together and companies V and W together in the year 2004 ?
a)3000
b)2952
c)2575
d)2650
e)3200
7.How many non-defective calculators approximately were manufactured by company T taking all the years together ? (in thousands)
a)124
b)125
c)126
d)118
e)120
8.How many defective calculators were manufactured by company U in all the given years ? (in thousands)
a)2.229
b)1.699
c)3.325
d)1.757
e)2.475
9.How many average number of calculators (in thousands) were manufactured by company V, in the given years ?
a)20
b)21
c)22
d)23
e)24
10.The respective ratio between the total number of calculators manufactured by companies V and W in all the given years is :
a)12:13
b)11:15
c)14:15
d)12:17
e)13:17
Number of candidates from different locations appeared and passed in a competitive examination over the years
Year
|
Rural
|
Semi-urban
|
State-capitals
|
Metropolises
|
||||
App.
|
Passed
|
App.
|
Passed
|
App.
|
Passed
|
App.
|
Passed
|
|
1990
|
1652
|
208
|
7894
|
2513
|
5054
|
1468
|
9538
|
3214
|
1991
|
1839
|
317
|
8562
|
2933
|
7164
|
3284
|
10158
|
4018
|
1992
|
2153
|
932
|
8139
|
2468
|
8258
|
3159
|
9695
|
3038
|
1993
|
5032
|
1798
|
9432
|
3528
|
8529
|
3628
|
11247
|
5158
|
1994
|
4915
|
1658
|
9784
|
4015
|
9015
|
4311
|
12518
|
6328
|
1995
|
5628
|
2392
|
9969
|
4263
|
1725
|
4526
|
13624
|
6419
|
a)Metropolises
b)State-capital & Rural
c)Semi-urban
d)State-capital
e)None of these
2.In which of the following years was the percentage qualified to appeared candidates from Semi-urban area the least ?
a)1990
b)1991
c)1992
d)1993
e)1994
3.Approximately what was the percent drop in the number of Semi-urban candidates appeared from 1991 to 1992 ?
a)14%
b)5%
c)9%
d)20%
e)None of these
4.In 1993 the percentage of candidates qualified to appeared was approximately 35 from which location ?
a)Rural and Semi-urban
b)Semi-urban and Metropolises
c)Rural and Metropolises
d)Rural
e)None of these
5.The total number of candidates qualified from Rural in 1993 and Semi-urban in 1990 was exactly equal to the total number of candidates qualified from State-capitals in which of the following years ?
a)1994
b)1991
c)1990
d)1993
e)1991
Directions(6-10): Study the following table carefully and answer the given questions.
Number of calculators manufactured by five different companies in the given years (in thousand) and percentage of defective pieces.
Company>>
Year↓
|
S
|
T
|
U
|
V
|
W
|
|||||
N
|
M
|
N
|
M
|
N
|
M
|
N
|
M
|
N
|
M
|
|
2004
|
18
|
1.2
|
16
|
0.8
|
12
|
0.6
|
14
|
0.9
|
17
|
1.0
|
2005
|
22
|
1.1
|
14
|
0.9
|
17
|
1.2
|
16
|
0.8
|
21
|
1.3
|
2006
|
20
|
1.3
|
24
|
1.4
|
18
|
0.9
|
23
|
1.3
|
25
|
1.2
|
2007
|
26
|
1.2
|
23
|
1.1
|
27
|
1.4
|
22
|
0.8
|
20
|
0.6
|
2008
|
22
|
0.7
|
25
|
1.0
|
28
|
1.6
|
27
|
1.4
|
24
|
1.1
|
2009
|
26
|
1.3
|
23
|
0.8
|
29
|
1.5
|
24
|
1.2
|
28
|
1.6
|
N = Total number of calculators manufactured
M = Percentage of defective pieces
6.What is the difference between the number of non-defective calculators manufactured by companies S and T together and companies V and W together in the year 2004 ?
a)3000
b)2952
c)2575
d)2650
e)3200
7.How many non-defective calculators approximately were manufactured by company T taking all the years together ? (in thousands)
a)124
b)125
c)126
d)118
e)120
8.How many defective calculators were manufactured by company U in all the given years ? (in thousands)
a)2.229
b)1.699
c)3.325
d)1.757
e)2.475
9.How many average number of calculators (in thousands) were manufactured by company V, in the given years ?
a)20
b)21
c)22
d)23
e)24
10.The respective ratio between the total number of calculators manufactured by companies V and W in all the given years is :
a)12:13
b)11:15
c)14:15
d)12:17
e)13:17
Answer key
2.c)
3.b)
4.d)
5.a)
6.b)
7.a)
8.b)
9.b)
10.c)
Solution
2.Percentage of qualified to appeared candidates from Semi-urban area in 1990
= (2513/7894) × 100 = 31.83%
Percentage of qualified to appeared candidates from Semi-urban area in 1991
= (2933/8562) × 100 = 34.25%
Percentage of qualified to appeared candidates from Semi-urban area in 1992
= (2468/8139) × 100 = 30.32%
Percentage of qualified to appeared candidates from Semi-urban area in 1993
= (3528/9432) × 100 = 37.40%
Percentage of qualified to appeared candidates from Semi-urban area in 1994
= (4015/9784) × 100 = 41.03%
Percentage of qualified to appeared candidates from Semi-urban area in 1995
= (4263/9969) × 100 = 42.76%
3.Required% = [(8562 - 8139)/8562] × 100 = 5% (approx)
4.In 1993 the percentage of candidates qualified to appeared in Rural area
= (1798/5032) × 100 = 35.73%
In 1993 the percentage of candidates qualified to appeared in Semi-urban areas
= (3528/9432) × 100 = 37.40%
In 1993 the percentage of candidates qualified to appeared in State capitals areas
= (3628/8529) × 100 = 42.53%
In 1993 the percentage of candidates qualified to appeared in Metropolises
= (5158/11247) × 100 = 45.86%
Therefore, the most appropriate answer is Rural area.
5.The number of candidates qualified from Rural area in 1993 = 1798
The number of candidates qualified from Semi-urban area in 1990 = 2513
Total sum = (1798 + 2513) = 4311
The number of candidates qualified from State-capitals in 1994 = 4311
6.Number of non-defective calculators manufactured in 2004:
Company S = (18000 × 98.8)/100 = 17784
Company T = (16000 × 99.2)/100 = 15872
Company V = (14000 × 99.1)/100 = 13874
Company W = (17000 × 99)/100 = 16830
Difference
= 17784 + 15872 - 13874 - 16830
= 2952
7.Number of non-defective calculators manufactured by company T:
Year 2004 = 15.872 thousand
Year 2005 = (14 × 99.1)/100 = 13.874 thousand
Year 2006 = (24 × 98.6)/100 = 23.664 thousand
Year 2007 = (23 × 98.9)/100 = 22.747 thousand
Year 2008 = (25 × 99)/100 = 24.75 thousand
Year 2009 = (23 × 99.2)/100 = 22.816 thousand
Total calculators
= (15.872 + 13.874 + 23.664 + 22.747 + 24.75 + 22.816)
= 124 thousand (approx)
8.Number of defective calculators manufactured by company U:
Year 2004 = (12 × 0.6)/100 = 0.072 thousand
Year 2005 = (17 × 1.2)/100 = 0.204 thousand
Year 2006 = (18 × 0.9)/100 = 0.162 thousand
Year 2007 = (27 × 1.4)/100 = 0.378 thousand
Year 2008 = (28 × 1.6)/100 = 0.448 thousand
Year 2009 = (29 × 1.5)/100 = 0.435 thousand
Total
= (0.072 + 0.204 + 0.162 + 0.378 + 0.448 + 0.435)
= 1.699 thousand
9.Required answer
= 1/6 (14 + 16 + 23 + 22 + 27 + 24)
= 21 thousand
10.Total number of calculators manufactured:
Company V = 126 thousand
Company W = (17 + 21 + 25 + 20 + 24 + 28) = 135 thousand
Required ratio = 126 : 135 = 14 : 15
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