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Question
What is the percentage increase or decrease in the number of seats won by A, B, C and D in the general elections of 2009 as compared to the results of 2004?
| Political party | Number of seats won in 2004 |
Number of seats won in 2009 |
| A | 206 | 145 |
| B | 116 | 138 |
| C | 4 | 24 |
| D | 11 | 12 |
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Solution
For Political party A,
Number of seats won in 2004 = 206
Number of seats won in 2009 = 145
Decrement in the number of seats won by party A = 206 – 145 = 61
∴ Decrease % = `61/206 xx 100` = 29.61%
For Political party B,
Number of seats won in 2004 = 116
Number of seats won in 2009 = 138
Increment in the number of seats won by party B = 138 – 116 = 22
∴ Increase % = `22/116 xx 100` = 18.96%
For Political party C,
Number of seats won in 2004 = 4
Number of seats won in 2009 = 24
Increment in the number of seats won by party C = 24 – 4 = 20
∴ Increase % = `20/4 xx 100` = 500%
For Political party D,
Number of seats won in 2004 = 11
Number of seats won in 2009 = 12
Increment in the number of seats won by party D = 12 – 11 = 1
∴ Increase % = `1/11 xx 100` = 9.09%
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