Arithmetic Aptitudes › Ratio and Proportion › Question #4772
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QFind x: y: z if y/(x - z) = (y + x)/z = x/y.

ID: #4772 Ratio and Proportion 252 views
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#4772Q ID
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Ratio and ProportionTopic
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  • A 1 : 2 : 3 ✔ ✖
  • B 3 : 2 : 1 ✔ ✖
  • C 4 : 2 : 3 ✔ ✖
  • D 2 : 4 : 7 ✔ ✖
Correct Answer: Option C

Explanation


Given, y/(x - z) = (y + x)/z
yz = xy + x2- yz - xz .. (1)
Also (x/y) = (y/(x - z)) => x2 - xz = y2 .. (2)
Using (1) and (2), we get yz = xy - yz + y2
2yz = xy + y2
2z = x + y
Only option (c) satisfies the equation
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