Quantitative Aptitude Ques 1231

Question: If $ x:y::2:3 $ and $ 2:x::4:8, $ then the value of y, is

Options:

A) 6

B) 8

C) 4

D) 12

Show Answer

Answer:

Correct Answer: A

Solution:

  • $ \frac{2}{x}=\frac{4}{8} $
    $ \Rightarrow $ $ 4x=16 $
    $ \Rightarrow $ $ x=4 $ Put the value of x in $ \frac{x}{y}=\frac{2}{3}, $ we get $ \frac{4}{y}=\frac{2}{3} $
    $ \Rightarrow $ $ 2y=12 $
    $ \Rightarrow $ $ y=6 $
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