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October 21, 2014

October 21, 2014

Posted by **Simran kaur** on Sunday, November 18, 2012 at 2:20am.

- Math -
**Bosnian**, Sunday, November 18, 2012 at 2:46amS = Numbers of students

Percent of boys.

100 % - 55 % = 45 % = 45 / 100

45 % S = 18

45 S / 100 = 18 Multiply both sides by 100

45 S = 18 * 100

45 S = 1800 Divide both sides by 45

S = 1800 / 45 = 40

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