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The table shows the number of pages in each of 5 textbooks. What is th

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The table shows the number of pages in each of 5 textbooks. What is th  [#permalink]

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New post 07 Dec 2018, 01:32
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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?

A. 400
B. 450
C. 500
D. 550
E. 600

Attachment:
table.png
table.png [ 2.92 KiB | Viewed 1159 times ]

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The table shows the number of pages in each of 5 textbooks. What is th  [#permalink]

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New post 07 Dec 2018, 02:00
Bunuel wrote:
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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?

A. 400
B. 450
C. 500
D. 550
E. 600

Attachment:
table.png


the avg is = 2000+x/5

at value x=450 we get mean as 490 which would be equal to median 490 of the set ( 450,480,490,510,520).. least value would be 450 and greatest would be 550

( 480,490,510,520,550)
avg = 2000+550/5 = 510
IMO D
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Re: The table shows the number of pages in each of 5 textbooks. What is th  [#permalink]

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New post 02 Jan 2020, 21:27
Wouldnt it be better to take options and solve the question?
Or is there any equation for it
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Re: The table shows the number of pages in each of 5 textbooks. What is th   [#permalink] 02 Jan 2020, 21:27
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