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Founder  Joined: 18 Apr 2015
Posts: 13891
GRE 1: Q160 V160 Followers: 313

Kudos [?]: 3676 , given: 12912

750 < n < 1,500 [#permalink]
Expert's post 00:00

Question Stats: 74% (00:46) correct 25% (00:40) wrong based on 78 sessions
$$750 < n < 1,500$$

 Quantity A Quantity B $$1,500-n$$ $$n-750$$

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

_________________
Intern Joined: 08 Apr 2018
Posts: 44
Followers: 0

Kudos [?]: 17 , given: 15

Re: 750 < n < 1,500 [#permalink]
Carcass wrote:
$$750 < n < 1,500$$

 Quantity A Quantity B 1,500-n n-750

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Please confirm the solution for this
Intern Joined: 16 May 2018
Posts: 1
Followers: 0

Kudos [?]: 0 , given: 0

Re: 750 < n < 1,500 [#permalink]
Carcass wrote:
$$750 < n < 1,500$$

 Quantity A Quantity B 1,500-n n-750

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given. Founder  Joined: 18 Apr 2015
Posts: 13891
GRE 1: Q160 V160 Followers: 313

Kudos [?]: 3676  , given: 12912

Re: 750 < n < 1,500 [#permalink]
1
KUDOS
Expert's post
n is an integer in the range. However, it could be also a fraction.

That's is already enough without any calculation to assert that the answer is D

Hope this helps.

Regards
_________________ GRE Instructor Joined: 10 Apr 2015
Posts: 3907
Followers: 163

Kudos [?]: 4766  , given: 70

Re: 750 < n < 1,500 [#permalink]
2
KUDOS
Expert's post
Carcass wrote:
$$750 < n < 1,500$$

 Quantity A Quantity B $$1,500-n$$ $$n-750$$

A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

We can solve this question using matching operations

Given:
Quantity A: 1,500 - n
Quantity B: n - 750

Let's try to get the variables (n's) in one quantity

Add n to both quantities to get:
Quantity A: 1,500
Quantity B: 2n - 750

Add 750 to both quantities to get:
Quantity A: 2,250
Quantity B: 2n

Divide both quantities by 2 to get:
Quantity A: 1,125
Quantity B: n

We're told that 750 < n < 1,500
This means n COULD equal 1,125 in which case the two quantities are EQUAL
or n COULD equal 1,400 in which case Quantity B is GREATER

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_________________

Brent Hanneson – Creator of greenlighttestprep.com  Intern Joined: 10 Apr 2018
Posts: 17
Followers: 0

Kudos [?]: 12  , given: 28

Re: 750 < n < 1,500 [#permalink]
2
KUDOS
When we see a range value, it's best to use the min and max value (based on my experience).

If 750<n<1500, then the min value of n will be 751 and the max is 1499. Plug in these values into the question.

When n=1499,
Quant A:1500-n= 1500-1499= 1
Quant B: n-750= 1499-750= much greater than 1. Quantity B > quantity A

However, when n=751,
Quant A: 1500-n= much greater than 1,
Quant B: n-750= 1. Quantity A > quantity B.

Since the sign can change, we should choose D
Intern Joined: 26 May 2018
Posts: 37
Followers: 0

Kudos [?]: 7 , given: 2

Re: 750 < n < 1,500 [#permalink]
Given range -> 750 < n < 1500
Subtract n from the above equation. You'll get 750-n < 0 < 1500-n . Therefore, n - 750 > 0 and 1500 - n > 0 .
If n = 800 , then n - 750 = 50 and 1500 - n = 700 . Here B is greater.
If n = 1400 , then n - 750 = 650 and 1500-n - 100 , Here A is greater.
Hence we can conclude that D is the appropriate option.

Happy Learning! Re: 750 < n < 1,500   [#permalink] 27 May 2018, 11:55
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