Rounding off : GMAT Quantitative Section
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# Rounding off

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31 May 2010, 05:32
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What is the rule followed for rounding off?

For e.g. when 1.423 is rounded to hundredth place, it is 1.42
Similarly, When 1.427 is rounded to hundredth place, it is 1.43

What is the value when 1.425 is rounded to hundredth place??
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31 May 2010, 05:45
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achan wrote:
What is the rule followed for rounding off?

For e.g. when 1.423 is rounded to hundredth place, it is 1.42
Similarly, When 1.427 is rounded to hundredth place, it is 1.43

What is the value when 1.425 is rounded to hundredth place??

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, 1.425 rounded to the nearest hundredth = 1.43, since the dropped 5 is equal to 5.

Hope it helps.
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18 Jan 2015, 23:24
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Re: Rounding off   [#permalink] 18 Jan 2015, 23:24
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