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Re: What will be the thousands digit of the integer Q [#permalink]
Hi Bunuel , I need your help -
From where can I learn about the Round-off concept is detail.

Thanks & Regards,
Akash
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Re: What will be the thousands digit of the integer Q [#permalink]
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DAakash7
Hi Bunuel , I need your help -
From where can I learn about the Round-off concept is detail.

Thanks & Regards,
Akash

Rounding is simplifying a number to a certain place value. To round the decimal drop the extra decimal places, and if the first dropped digit is 5 or greater, ROUND UP the last digit that you keep. If the first dropped digit is 4 or smaller, ROUND DOWN (keep the same) the last digit that you keep.

Example:
5.3485 rounded to the nearest tenth = 5.3, since the dropped 4 is less than 5.
5.3485 rounded to the nearest hundredth = 5.35, since the dropped 8 is greater than 5.
5.3485 rounded to the nearest thousandth = 5.349, since the dropped 5 is equal to 5.

So, according to the above 8.35y rounded to the nearest tenth will be 8.4 irrespective of the value of y.

For mote on this check the following posts:
Math: Number Theory
Rounding Rules on the GMAT: Slip to the Side and Look for a Five!

For all other subject check the following posts:
ALL YOU NEED FOR QUANT ! ! !
Ultimate GMAT Quantitative Megathread

Hope it helps.
Joined: 30 Jul 2014
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Re: What will be the thousands digit of the integer Q [#permalink]
Bunuel
DAakash7
Hi Bunuel , I need your help -
From where can I learn about the Round-off concept is detail.

Thanks & Regards,
Akash

Rounding is simplifying a number to a certain place value. To round the decimal drop the extra decimal places, and if the first dropped digit is 5 or greater, ROUND UP the last digit that you keep. If the first dropped digit is 4 or smaller, ROUND DOWN (keep the same) the last digit that you keep.

Example:
5.3485 rounded to the nearest tenth = 5.3, since the dropped 4 is less than 5.
5.3485 rounded to the nearest hundredth = 5.35, since the dropped 8 is greater than 5.
5.3485 rounded to the nearest thousandth = 5.349, since the dropped 5 is equal to 5.

So, according to the above 8.35y rounded to the nearest tenth will be 8.4 irrespective of the value of y.

For mote on this check the following posts:
Math: Number Theory
Rounding Rules on the GMAT: Slip to the Side and Look for a Five!

For all other subject check the following posts:
ALL YOU NEED FOR QUANT ! ! !
Ultimate GMAT Quantitative Megathread

Hope it helps.

Thanks a lot for your help Bunuel - I will refer the section.

Regards,
Akash
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Re: What will be the thousands digit of the integer Q [#permalink]
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Re: What will be the thousands digit of the integer Q [#permalink]
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