General Aptitude › Ratio and Proportion › Question #4767
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QIf the boy-to-girl ratio in a class is B and the girl-to-boy ratio is G, then 3 (B + G) equals?

ID: #4767 Ratio and Proportion 152 views
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#4767Q ID
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Ratio and ProportionTopic
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  • A Equal to 3 ✔ ✖
  • B Less than 3 ✔ ✖
  • C More than 3 ✔ ✖
  • D Less than 1/3 ✔ ✖
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Explanation


Let number of boys = x
Let number of girls = y
Therefore x/y = B and y/x = G
3(B + G) = 3[(x/y) + (y/x)] = 3[(x2 + y2)/xy] > 3If the boy-to-girl ratio in a class is B and the girl-to-boy ratio is G, then 3 (B + G) equals?
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