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27 Jan 2011, 02:38
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
67% (01:20) correct
33%
(01:35)
wrong
based on 105
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x equals to y% of what number?
(1) x = 3y
(2) 6y + 2x = 56x/14
(1) x = 3y
(2) 6y + 2x = 56x/14
Can you please explain the answer to this DS question from test by https://www.realtestquestions.com?
Thanks
Thanks
27 Jan 2011, 02:59
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X equals to Y% of what number?
Let the number y% of which is x be z:
Basically we need to calculate the ratio \(\frac{x}{y}\).
(1) x = 3y:
Sufficient.
(2) 6y + 2x = 56x/14:
Sufficient.
Answer: D.
Let the number y% of which is x be z:
- \(\frac{y}{100}*z=x\);
\(z=\frac{100x}{y}\).
Basically we need to calculate the ratio \(\frac{x}{y}\).
(1) x = 3y:
- \(\frac{x}{y}=3\).
Sufficient.
(2) 6y + 2x = 56x/14:
- \(6y+2x=4x\);
\(6y=2x\);
\(\frac{x}{y}=3\).
Sufficient.
Answer: D.
