Directions: Study the following graph to answer these questions.
 
The distribution of total number of pages for different magazines which are in circulation is given in Chart I. the total number of pages is 1157. The percentage distribution of articles on different topics submitted in any of these magazines is given in Chart II,

Chart I


Chart II
Important for :
1
How many pages more/less are occupied by Stories in ‘A’ than in ‘D’?
» Explain it
A
Pages occupied by stories in A = 21% of 180

21 × 180  = 37.8
100

Pages occupied by stories in D = 21% of 205
 
21 × 205  = 43.05
100

Difference in page occupied = 43.05 – 37.8 = 5.25

So, stories in A occupied 5.25 pages less than stories in D.

Hence, option A is correct.

2
If in magazine F, six articles are published in Science then approximately how many articles are published on Religion?
» Explain it
B
Pages occupied by Science in F = 17% of 192

17 × 192  = 32.64
100

∴  Page per article =  32.64  = 5.44
6

Pages occupied by religion in F = 13% of 192

13 × 192  = 24.96
100

Required number of article of religion

24.96  ≈ 5
5.44

Hence, option B is correct.

3
The number of articles on Arts in C is six. The number of articles on Arts in C and B are in the same proportion as the total number of their pages. The number of articles on Arts in B is about
» Explain it
C
Pages occupied by Art in C = 12% of 168

12 × 168  = 20.16
100

Pages occupied by Art in B = 12% of 275
 
12 × 2.75  = 33
100

Ratio of articles = Ratio of pages occupied
 
∴       6  =  20.16
x 33

( x = number of articles of Art in C)
 
x =  6 × 33  ≈ 10
20.16

∴  Number of article of Art in C = 10.

Hence, option C is correct.

4
In certain issue of E, eight stories were published and the ratio of total number of articles submitted in E and C is 19 : 20. How many articles were submitted in C taking number of pages used in stories as an average for other articles?
» Explain it
D
Number of pages occupied by stories in E = 21% of 137

21 × 137  = 28.77
100

Page per article of stories in E

28.77  = 3.596
8

Number of Articles in E

Total Pages  =  137  ≈ 38
Pages per Articles 3.596

By the rule of ratio & proportion, we get

∴   19 : 20 : :    38 : x

  x =  20 × 38  = 40.
19

Hence, option D is correct.

5
By approximately what percent of number of pages devoted for Arts is more in B than in A? The percentages given in Chart II may be taken as percentages of the pages occupied by the respective topics.
» Explain it
B
Page devoted to Arts in B = 12% of 275

12 × 275  = 33
100

Pages devoted to Art in A = 12% of 180
 
12 × 180  = 21.6
100

∴  Required percentage

33 – 21.6  × 100% ≈ 52.7%
21.6

Hence, option B is correct.


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