Question

The bar graph in Panel (a) shows the proportion of male and female illiterates in 2001 and 2011. The proportions of males and females in 2001 and 2011 are given in Panel (b) and (c), respectively. The total population did not change during this period. The percentage increase in the total number of literates from 2001 to 2011 is _____.

• A. 35.43
• B. 34.43
• C. 30.43
• D. 33.43

Answer 1

The correct option is C 30.43

Let total population

In 2001 = 100
In 2011 = 100

In 2001,
males = 60, females = 40 illiterates,

50% of 60 = 30
60% of 40 = 24
54

literates = 100 - 54 = 46

In 2011,
males = 50, females = 50 illiterates,

40% of 50 = 20
40% of 50 = 20
40

literates = 100 - 40 = 60

$Percentageofincreaseliteratesfrom2001to2011=\frac{60-46}{46}\times 100=30.43$