SOLUTION: In a class the number of boys is 40% more than that of girls. What is the ratio between the number of girls and that of boys?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: In a class the number of boys is 40% more than that of girls. What is the ratio between the number of girls and that of boys?      Log On


   

Question 895429: In a class the number of boys is 40% more than that of girls. What is the ratio between the number of girls and that of boys?
Answer by josmiceli(19441) About Me  (Show Source):
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Let +b+ = number of boys
Let +g+ = number of girls
given:
(1) +b+=+g+%2B+.4g+
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Find +g%2Fb+
(1) +b+=+1.4g+
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+g%2Fb+=+g+%2F+%28+1.4g+%29+
+g%2Fb+=+1+%2F+1.4+
+g%2Fb+=+10%2F14+
+g%2Fb+=+5%2F7+ answer