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If n is an integer between 3 and 9, what is the value of n ? (1) On t

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Bunuel
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If n is an integer between 3 and 9, what is the value of n ? (1) On t [#permalink] New post  15 Jan 2020, 02:25
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If n is an integer between 3 and 9, what is the value of n ?

(1) On the number line, the distance from 3 to n is 2/3 of the distance from 3 to 9.
(2) On the number line, n is 10 units to the right of -3
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Re: If n is an integer between 3 and 9, what is the value of n ? (1) On t [#permalink] New post  15 Jan 2020, 03:12
#1
On the number line, the distance from 3 to n is 2/3 of the distance from 3 to 9.
n-3= 2/3 * 6
n=7 sufficient
#2
On the number line, n is 10 units to the right of -3
n would be 7
sufficient
IMO D


Bunuel wrote:
If n is an integer between 3 and 9, what is the value of n ?

(1) On the number line, the distance from 3 to n is 2/3 of the distance from 3 to 9.
(2) On the number line, n is 10 units to the right of -3
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BrentGMATPrepNow
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Re: If n is an integer between 3 and 9, what is the value of n ? (1) On t [#permalink] New post  24 Jun 2020, 09:45
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Bunuel wrote:
If n is an integer between 3 and 9, what is the value of n ?

(1) On the number line, the distance from 3 to n is 2/3 of the distance from 3 to 9.
(2) On the number line, n is 10 units to the right of -3


Given: n is an integer between 3 and 9
In other words, the number line looks like This: <------3-----n------9------>

Target question: What is the value of n ?

Statement 1: On the number line, the distance from 3 to n is 2/3 of the distance from 3 to 9.
We can write: (n - 3) = (2/3)(9 - 3)
Since this is a linear equation with only one variable, we COULD to find the value of n (but we would never waste precious time on test day doing so)
Since we COULD answer the target question with certainty, statement 1 is SUFFICIENT

Aside: If we solve the equation we get n = 7

Statement 2: On the number line, n is 10 units to the right of -3
In other words, n = -3 + 10
In other words, n = 7
Since we can answer the target question with certainty, statement 2 is SUFFICIENT

Answer: D

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Brent
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Re: If n is an integer between 3 and 9, what is the value of n ? (1) On t [#permalink]
24 Jun 2020, 09:45
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