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Mathsoft Master
8,093 Answers
- Posted on Sep 27, 2013
Re: The ratio of the number of boys to the number of...
Let b the number of boys, and g the number of girls.
b/g=2/7 => 7b=2g
g=b+250
7b=2(b+250)=2b+500
5b=500 ==> b=100
g=b+250=100+250=350
Verification: 100/350=10/35=2/7
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