Line charts - Data Interpretation Questions and Answers

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For which year, the percentage rise/fall in the number of students who left the school compared to the previous year is maximum?

1997

1998

1999

2000

Answer : Option A

Explanation :

The percentage rise/fall in the number of students who left the school (compared to the previous year) during various years are:

For 1997 = [ $\frac { (450-250) } { 2 50}$ x 100 ]% = 80% (rise)

For 1998 = [ $\frac { (450-400) } { 450}$ x 100 ]% = 11.11% (fail)

For 1999 =[ $\frac { (400-350) } { 400}$ x 100 ]% = 12.5% (fail)

For 2000 =[ $\frac { (450-350) } { 350}$ x 100 ]% = 28.57% (rise)

For 2001 = [ $\frac { (450-450) } { 450}$ x 100 ]% = 0%

Clearly, the maximum percentage rise/fall is for 1997.

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