GATE EC 2019 Set 1 — Question 7
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General Aptitude → Quantitative Aptitude → Data Interpretation (Bar, Pie, Graphs, Tables)
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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 _______.
📷 Figure: Panel (b) Pie chart showing proportion of males and females in 2001
📷 Figure: Panel (c) Pie chart showing proportion of males and females in 2011
Correct answer
(A) 30.43
Solution
Let the total population be .In 2001:
- Female population = of (from Panel (b))
- Male population = of (from Panel (b))
- Female illiterates = of (from Panel (a))
- Female literates =
- Male illiterates = of (from Panel (a))
- Male literates =
- Total literates in 2001 () =
- Female population = of (from Panel (c))
- Male population = of (from Panel (c))
- Female illiterates = of (from Panel (a))
- Female literates =
- Male illiterates = of (from Panel (a))
- Male literates =
- Total literates in 2011 () =
- Increase in literates =
- Percentage increase =
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