Correct Answer - Option 2 : 71.5%
Given:
Name of society
|
Total number of people living in society
|
Ratio of male to female
|
Percentage of children
|
Gokuldham
|
2700
|
4 : 5
|
20%
|
Aparnam
|
1980
|
65 : 67
|
33.33%
|
Kalavati
|
2100
|
11 : 10
|
30%
|
Madhuban
|
2400
|
45 : 39
|
30%
|
Rangmahal
|
1920
|
7 : 5
|
25%
|
Formula used:
Percentage = (Favourable value/Base value) × 100
Calculation:
The following table will be prepared:
Name of society
|
Total number of people living in society
|
Number of males
|
Number of females
|
Number of children
|
Gokuldham
|
2700
|
960
|
1200
|
540
|
Aparnam
|
1980
|
650
|
670
|
660
|
Kalavati
|
2100
|
770
|
700
|
630
|
Madhuban
|
2400
|
900
|
780
|
720
|
Rangmahal
|
1920
|
840
|
600
|
480
|
Number of children of Gokuldham society = 540
Number of children of Aparnam society = 660
Number of males of Madhuban society = 900
Number of females of Madhuban society = 780
Required percentage = {(540 + 660)/(900 + 780)} × 100
⇒ {1200/1680) × 100
⇒ 12000/168
⇒ 71.42
Or ≈ 71.5%
∴ The number of children of Gokuldham and that of Aparnam society together is 71.5% of the males and females of Madhuban society together.