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Jolene began building a picket fence by planting stakes in a row; the

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Bunuel
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Jolene began building a picket fence by planting stakes in a row; the [#permalink] New post   25 Mar 2024, 01:30
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­Jolene began building a picket fence by planting stakes in a row; the stakes were evenly spaced. After planting the first 10 stakes, Jolene measured the length of the row and found that the row was 27 feet long. She continued the row by planting another 10 stakes, then measured the length of the entire row. How many feet long was the row of stakes Jolene had planted?

(A) 37
(B) 54
(C) 57
(D) 60
(E) 81


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dcarrehe
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Re: Jolene began building a picket fence by planting stakes in a row; the [#permalink] New post   25 Mar 2024, 04:01
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I say pretty surely it's this way:

If stakes are placed evenly spaced and total of 10 stakes equal 27 feet, Space between stakes = 3 ft

Then if adding another 10 stakes, you must include the additional space between stake 10 - 11 = +3ft

So, 27ft + 3ft + 27ft = 57ft. Answer C
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Re: Jolene began building a picket fence by planting stakes in a row; the [#permalink] New post   26 Mar 2024, 09:02
Great question, where is it from?
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Re: Jolene began building a picket fence by planting stakes in a row; the [#permalink] New post   26 Mar 2024, 09:03
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saynchalk wrote:
Great question, where is it from?

­As indicated in the tags, it's from Princeton Review.
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Re: Jolene began building a picket fence by planting stakes in a row; the [#permalink] New post   29 Mar 2024, 02:16
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dcarrehe wrote:
I say pretty surely it's this way:

If stakes are placed evenly spaced and total of 10 stakes equal 27 feet, Space between stakes = 3 ft

Then if adding another 10 stakes, you must include the additional space between stake 10 - 11 = +3ft

So, 27ft + 3ft + 27ft = 57ft. Answer C



 

­IF we have \(10\) stakes then total spaces between the stakes will be \(9.\)

Hence \(10\) stakes and \(9\) spaces together measure \(27\) feet. 

You have ignored the width of the stakes? Why?

How can we find the width of the space between the stakes, unless we are told to ignore the width of the stakes?

The way I did was, chose the closest answer to \(54.\)­
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Re: Jolene began building a picket fence by planting stakes in a row; the [#permalink]
29 Mar 2024, 02:16
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