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# The table provides select information for turtle nest count estimates

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Re: The table provides select information for turtle nest count estimates [#permalink]
1
Kudos
Can someone post the original explanation/solution? I have some doubts about my method to arrive at the right answer.

Regarding the first statement, Nagahama increased from 106 to 612, which is almost 500 % growth in close to 16 years. So annually it will grow at 500 / 16 ~ 31 % so greater than 15 %

Is this correct?
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Re: The table provides select information for turtle nest count estimates [#permalink]
3
Kudos
Quote:
Q#3
If Maehama Beach experienced a constant percentage rate increase of estimated turtle nests beginning in 1989, it can be estimated that there would be more than 2,000 estimated nests on the beach by the year 2020.

For this question, please let me know whether my understanding is correct or not -

From 1989 to 2013 (24 years) the percentage growth is = [(1637-611)/(611) * 100] = 167%

So annual growth will be around 167/24 = ~7%

Using this rate we can confidently say that within the next 3 years, there would be more than 2,000 estimated nests on the beach.

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Re: The table provides select information for turtle nest count estimates [#permalink]
arya251294
Quote:
Q#3
If Maehama Beach experienced a constant percentage rate increase of estimated turtle nests beginning in 1989, it can be estimated that there would be more than 2,000 estimated nests on the beach by the year 2020.

For this question, please let me know whether my understanding is correct or not -

From 1989 to 2013 (24 years) the percentage growth is = [(1637-611)/(611) * 100] = 167%

So annual growth will be around 167/24 = ~7%

Using this rate we can confidently say that within the next 3 years, there would be more than 2,000 estimated nests on the beach.

Yup, used the same logic to arrive at 1637*(1.07)^7 = 2628.66 turtle nests.
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Re: The table provides select information for turtle nest count estimates [#permalink]
1
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Abhishek009
kntombat
I know this is a really silly question but can anyone explain the answer to : The greatest annual increase in estimated turtle nests experienced by any of the individual beaches was larger than 15%. ?

thanks
Check Nagahama!!!

PS : No questions are silly bro, we are all learners..........
­   annual increase of Nagahama is 23.8679% Am i right???
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The table provides select information for turtle nest count estimates [#permalink]
Shouldn't we consider compound interest for annualized interest? If we consider compound interest , annualized interest comes around 11.5%­ for Nagahama
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Re: The table provides select information for turtle nest count estimates [#permalink]
1
Kudos
Can some help with he first part of this question ? Shingu and Toyohashi have been have shown constant, falling nests/year respectively - how can we be sure if they had shown more 15% growth in "some" year ??­
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Re: The table provides select information for turtle nest count estimates [#permalink]
dhruvshawarma
Can some help with he first part of this question ? Shingu and Toyohashi have been have shown constant, falling nests/year respectively - how can we be sure if they had shown more 15% growth in "some" year ??­
­Question is about if there is atleast "one beach" which had grown more than 15%. We need to find a single beach which had grown more than 15%.
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Re: The table provides select information for turtle nest count estimates [#permalink]
2
Kudos
IMO, statement 1 is ambiguously worded because of the phrase "any of the beaches" - Example: If I say "True, the greatest annual increase in estimated turtle nests experienced by any of the individual beaches was larger than 15%" - How would you perceive it? It would literally mean that if ANY of the beaches is chosen from the list, it will have greater than 15% "annual" growth. And this is not Must be True.

IMO, the wording of this question needs to be updated to make it clearer.
Re: The table provides select information for turtle nest count estimates [#permalink]
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