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Updated on: 10 Dec 2012, 06:12
Originally posted by deepri0812 on 10 Dec 2012, 06:07.
Last edited by Bunuel on 10 Dec 2012, 06:12, edited 1 time in total.
Last edited by Bunuel on 10 Dec 2012, 06:12, edited 1 time in total.
Renamed the topic.
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A
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If the fraction d were converted into a decimal, would there be more than 3 nonzero digits to the right of the decimal point?
(1) The denominator of d is exactly 8 times the numerator of d.
(2) If d were converted into a decimal, d would be a non-repeating decimal.
(1) The denominator of d is exactly 8 times the numerator of d.
(2) If d were converted into a decimal, d would be a non-repeating decimal.
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10 Dec 2012, 06:15
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If the fraction d were converted into a decimal, would there be more than 3 nonzero digits to the right of the decimal point?
Let \(d=\frac{x}{y}\).
(1) The denominator of d is exactly 8 times the numerator of d. Given that \(y=8x\), thus \(d=\frac{x}{8x}=\frac{1}{8}=0.125\). Sufficient.
(2) If d were converted into a decimal, d would be a non-repeating decimal. Clearly insufficient, for example d could be 0.1 or 0.1234. Not sufficient.
Answer: A.
P.S. Please read carefully and follow: rules-for-posting-please-read-this-before-posting-133935.html Please pay attention to the rule#3. Thank you.
Let \(d=\frac{x}{y}\).
(1) The denominator of d is exactly 8 times the numerator of d. Given that \(y=8x\), thus \(d=\frac{x}{8x}=\frac{1}{8}=0.125\). Sufficient.
(2) If d were converted into a decimal, d would be a non-repeating decimal. Clearly insufficient, for example d could be 0.1 or 0.1234. Not sufficient.
Answer: A.
P.S. Please read carefully and follow: rules-for-posting-please-read-this-before-posting-133935.html Please pay attention to the rule#3. Thank you.
10 Dec 2012, 06:44
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Thanks bunuel - but is 0.1 a non repeating decimal?
I am actually confused & assumed pie (3.14...) as my example and marked D.
I am actually confused & assumed pie (3.14...) as my example and marked D.
