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Trish123 Trish123
  • 03-12-2015
  • Mathematics
Answered

At the banquet, the ratio of the number of girls is 5 : 3. Halfway through the banquet, 20 boys leave and the ratio becomes 5:4. How many girls are at the banquet?

Verified Answer :

Since3122015
Since3122015 Since3122015
  • 06-12-2015

\(\frac{5}{8}x-20=\frac{5}{9}x\\-20=\frac{-5}{72}x\\x=288\\\frac{3}{8}(288)\\108\)

108 girls

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