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# The table shows the number of pages in each of 5

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The table shows the number of pages in each of 5 [#permalink]  06 Dec 2017, 02:46
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100% (00:15) correct 0% (00:00) wrong based on 1 sessions
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table.png [ 2.92 KiB | Viewed 1356 times ]

The table shows the number of pages in each of 5 textbooks. What is the greatest possible value of x for which the average (arithmetic mean) number of pages of the 5 textbooks is equal to the median number of pages of the 5 textbooks?

[Reveal] Spoiler: OA
550

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Re: The table shows the number of pages in each of 5 [#permalink]  06 Dec 2017, 04:50
Carcass wrote:
Attachment:
table.png

The table shows the number of pages in each of 5 textbooks. What is the greatest possible value of x for which the average (arithmetic mean) number of pages of the 5 textbooks is equal to the median number of pages of the 5 textbooks?

[Reveal] Spoiler: OA
OA in 24h

Here
We need the greatest possible value of x, where mean = median
By looking at the values x > 520 such that median = 510

we can write the following equation:-

$$\frac{(480 + 490 +510 + 520 + x)}{5}$$ = 510

or x = 550 . This is the greatest possible value
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Re: The table shows the number of pages in each of 5 [#permalink]  06 Dec 2017, 11:46
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Re: The table shows the number of pages in each of 5 [#permalink]  07 Dec 2017, 18:49
E could be 550
Re: The table shows the number of pages in each of 5   [#permalink] 07 Dec 2017, 18:49
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