There are 120 girls in and 57 boys in school of 5% of the girls leave school and no new students are admitted. Calculate The change in percentage of boys
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Initial no. of students = 177
Intial % of boys = 57/177 * 100
= 1900/59 %
Final no. of students = 177 - 5% of 120
= 177 - 6 = 171
Hence,
Final % of boys = 57/171 * 100
= 1900/57 %
So, Change in % of boys
= 1900 ( 1/57 - 1/59 )
= 1.13 % ( approx )
Intial % of boys = 57/177 * 100
= 1900/59 %
Final no. of students = 177 - 5% of 120
= 177 - 6 = 171
Hence,
Final % of boys = 57/171 * 100
= 1900/57 %
So, Change in % of boys
= 1900 ( 1/57 - 1/59 )
= 1.13 % ( approx )
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1
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