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The preceding table shows a business’s spending over a 25-day period

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The preceding table shows a business’s spending over a 25-day period  [#permalink]

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New post 21 Jan 2019, 00:35
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Question Stats:

74% (01:16) correct 26% (01:40) wrong based on 24 sessions

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The preceding table shows a business’s spending over a 25-day period, in thousands of dollars. For each number amount earned in the first row, the second row gives the number of days that the business spent that amount. What was the median amount of money that the business spent during the 25-day period?

A $100,000
B $120,000
C $130,000
D $170,000
E $200,000

Attachment:
2019-01-21_1130.png
2019-01-21_1130.png [ 9.64 KiB | Viewed 411 times ]

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Re: The preceding table shows a business’s spending over a 25-day period  [#permalink]

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New post 21 Jan 2019, 01:12
To find the median of 25 numbers

=> \(\frac{25+1}{2}\)
=> \(\frac{26}{2}\)
=> 13th number in the set
=> 170,000

IMO D
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Re: The preceding table shows a business’s spending over a 25-day period  [#permalink]

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New post 21 Jan 2019, 08:05
Bunuel wrote:
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The preceding table shows a business’s spending over a 25-day period, in thousands of dollars. For each number amount earned in the first row, the second row gives the number of days that the business spent that amount. What was the median amount of money that the business spent during the 25-day period?

A $100,000
B $120,000
C $130,000
D $170,000
E $200,000

Attachment:
2019-01-21_1130.png



median of 25 days period would be the amount spent on 13th day
which as per the given info falls under amount 170,000 IMO D
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Re: The preceding table shows a business’s spending over a 25-day period  [#permalink]

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New post 21 Jan 2019, 08:19
Bunuel wrote:
Image
The preceding table shows a business’s spending over a 25-day period, in thousands of dollars. For each number amount earned in the first row, the second row gives the number of days that the business spent that amount. What was the median amount of money that the business spent during the 25-day period?

A $100,000
B $120,000
C $130,000
D $170,000
E $200,000

Attachment:
2019-01-21_1130.png


IMO D

Since n is odd, median will be n+1/2 = 13th term

Now if you notice 13th day will lie in 4th column of this table, the value will become $170,000
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Re: The preceding table shows a business’s spending over a 25-day period   [#permalink] 21 Jan 2019, 08:19
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The preceding table shows a business’s spending over a 25-day period

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