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Quant ques. Can anybody explain plz?

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New post 07 Jan 2018, 05:04
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Quant ques. Can anybody explain plz?  [#permalink]

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New post 07 Jan 2018, 05:28
rajbeersingh717 wrote:
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Hi
A fraction is terminating, if the denominator has only 2, 5 or both 2 and 5 as prime factors.
If you check the question that you have mentioned, Choice E is the only option that has 2 as the only prime factor that is 2^8.

You should read gmatclub math book. It will help you get hold of small but important concepts like this one.

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New post 07 Jan 2018, 05:54
rajbeersingh717 wrote:
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Terminating decimals: 1/4 = 0.25
Non Terminating Decimals: 1/3 = 0.333333

Nos which produce non terminating decimals: 3, 7, 11, 13 .. and their multiples.

Just break the denominators and find out which of these contain these numbers.

A. contains 3
B. contains 7
C. contains 3
D. contains 3
E. Does not contain any such number.



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Re: Quant ques. Can anybody explain plz?  [#permalink]

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New post 07 Jan 2018, 06:45
sandysilva wrote:
rajbeersingh717 wrote:
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Sent from my Redmi 3S using GMAT Club Forum mobile app


Hi
A fraction is terminating, if the denominator has only 2, 5 or both 2 and 5 as prime factors.
If you check the question that you have mentioned, Choice E is the only option that has 2 as the only prime factor that is 2^8.

You should read gmatclub math book. It will help you get hold of small but important concepts like this one.

Thnx

Sent from my Redmi 3S using GMAT Club Forum mobile app
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Re: Quant ques. Can anybody explain plz?  [#permalink]

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New post 07 Jan 2018, 12:30
Hi rajbeersingh717,

To start, you should post your individual GMAT questions to the proper sub-forums. For example, the Quant Problem Solving forum can be found here:

https://gmatclub.com/forum/problem-solving-ps-140/

In addition, many of the questions that you're interested in have likely already been discussed in the forums, so you should try searching for them (either through the search function on this site or through Google).

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Re: Quant ques. Can anybody explain plz?  [#permalink]

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New post 07 Jan 2018, 16:07
rajbeersingh717

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Also use the search bar on top right by typing few initial characters in text. It is possible usually that
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Re: Quant ques. Can anybody explain plz?   [#permalink] 07 Jan 2018, 16:07
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