Ratios

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Ratios

by tsmith93 » Mon Mar 15, 2010 1:48 am
In 1994, twice as mane boys as girls at Adams High School earned varsity letters. From 1994 to 2004, the number of girls earning varsity letters increased by 25% while the number of boys earning varsity letters decreased by 25%. What was the ratio in 2004 of the number of girls to the number of boys who earned varsity letters?
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by papgust » Mon Mar 15, 2010 2:16 am
In 1994, B = 2G. Assume B as 200 and G as 100.

From 1994 to 2004, no. of girls increased by 25% = 100 * 1.25 = 125.
No. of boys decreased by 25% = 200 * 0.75 = 150

Ratio of no. of girls to boys in 2004 is 125:150 = 5:6