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The table above shows 5 countries and their populations in

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The table above shows 5 countries and their populations in  [#permalink]

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New post Updated on: 18 Nov 2012, 05:59
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The table above shows 5 countries and their populations in 2001 and 2025. Which country has the highest population growth rate?



Is there a shortcut that avoids long division? I know how to do it (pop2025-pop2001/pop2001), but it takes me longer than 2 minutes.

Originally posted by fastcompany on 18 Nov 2012, 02:20.
Last edited by fastcompany on 18 Nov 2012, 05:59, edited 2 times in total.
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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 18 Nov 2012, 04:38
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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 18 Nov 2012, 05:18
nktdotgupta wrote:
Where is the table?


Sorry, I'm not sure how to make a table. I tried to space it out to make it easier to read but when I submit it removes the spaces.
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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 18 Nov 2012, 05:33
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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 18 Nov 2012, 05:48
Marcab wrote:
sure this is a 600-700 level question?


No, not sure at all. It seems straight forward enough, I'm just wondering if I'm missing a shortcut.
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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 18 Nov 2012, 05:55
You can draw it in ms doc nd take a snapshot nd attach the pic... U wl see d option to attach at d bottom

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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 18 Nov 2012, 05:55
Spoiler: :: Here is the solution from Veritas (not very helpful):
(B) Calculate the growth rate of each country:

Growth Rate = \(\frac{Pop2025-Pop2001}{Pop2001}\)

(A) \(\frac{1,431-1,273}{1,273} = .12\)
(B) \(\frac{1.363-1,033}{1,033}= .32\)
(C) \(\frac{346-285}{285}= .21\)
(D) \(\frac{252-206}{206}= .22\)
(E) \(\frac{209-172}{172}= .22\)
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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 19 Nov 2012, 18:34
fastcompany wrote:
Spoiler: :: Here is the solution from Veritas (not very helpful):
(B) Calculate the growth rate of each country:

Growth Rate = \(\frac{Pop2025-Pop2001}{Pop2001}\)

(A) \(\frac{1,431-1,273}{1,273} = .12\)
(B) \(\frac{1.363-1,033}{1,033}= .32\)
(C) \(\frac{346-285}{285}= .21\)
(D) \(\frac{252-206}{206}= .22\)
(E) \(\frac{209-172}{172}= .22\)


Is there any quick way to get down to answer?

This seems to be more math based !!!
This will take up time...

I tried to answer by just looking out range but went wrong! :cry:
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The table above shows 5 countries and their populations in  [#permalink]

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New post 23 Sep 2016, 06:02
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Q. Which country has the highest population growth rate?

Growth Rate = \(\frac{Pop2025-Pop2001}{Pop2001}\)

(A) \(\frac{1,431-1,273}{1,273} = \frac{158}{1273}\)
(B) \(\frac{1.363-1,033}{1,033}= \frac{330}{1033}\)
(C) \(\frac{346-285}{285}= \frac{61}{285}\)
(D) \(\frac{252-206}{206}= \frac{46}{206}\)
(E) \(\frac{209-172}{172}= \frac{37}{172}\)

If you take A and B, numerator increased and denominator decreased in A compared to A.
Thus rule out A and Keep B aside.

C. 61 is between 4-5 times 285......i.e., its fraction is 1/4-1/5
D. 46 is between 4-5 times 206......i.e., its fraction is 1/4-1/5
E. 37(approx 40) is between 4-5 times 206......i.e., its fraction is 1/4-1/5

coming to B, 330 is nearly 3 times its denominator making fraction 1/3 which is definitely greater than 1/4-1/5(ruling out C, D and E).
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Re: The table above shows 5 countries and their populations in  [#permalink]

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New post 17 Oct 2016, 20:22
is there any quicker way to do this problem?
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Re: The table above shows 5 countries and their populations in  [#permalink]

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Re: The table above shows 5 countries and their populations in &nbs [#permalink] 28 Oct 2018, 23:25
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