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Three houses are being sold through a real estate

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jjjinapinch Senior | Next Rank: 100 Posts Default Avatar
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Three houses are being sold through a real estate

Post Mon Jul 24, 2017 9:29 am
Three houses are being sold through a real estate agent. What is the asking price for the house with the second-largest asking price?

(1) The difference between the greatest and the least asking price is $130,000.
(2) The difference between the two greater asking prices is $85,000.

Official Guide question
Answer: E

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Post Wed Jul 26, 2017 3:26 pm
jjjinapinch wrote:
Three houses are being sold through a real estate agent. What is the asking price for the house with the second-largest asking price?

(1) The difference between the greatest and the least asking price is $130,000.
(2) The difference between the two greater asking prices is $85,000.
We can let a = the lowest asking price, b = the second-largest asking price, and c = the largest asking price.

We need to determine b.

Statement One Alone:

The difference between the greatest and the least asking price is $130,000.

Thus, c - a = 130,000; however, we cannot determine b. Statement one alone is not sufficient to answer the question.

Statement Two Alone:

The difference between the two greater asking prices is $85,000.

Thus c - b = 85,000. However, without knowing the value of c, statement two alone is not sufficient to answer the question.

Statements One and Two Together:

We have:

c - a = 130,000

and

c - b = 85,000

Even with these two equations, we still cannot determine b.

Answer: E

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Scott Woodbury Stewart Founder & CEO
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Post Tue Jul 25, 2017 6:17 pm
Hi jjjinapinch,

We're told that three houses are being sold. We're asked for the price with the second-largest asking price. This DS question can be solved by TESTing VALUES.

1) The difference between the greatest and the least asking price is $130,000.

IF....
The largest price = $200,000
Then the least price = $70,000
Then the 2nd-largest price could be ANY value between those two.
Fact 1 is INSUFFICIENT

2) The difference between the two greater asking prices is $85,000.

IF....
The largest price = $200,000
Then the 2nd-largest price = $115,000

IF....
The largest price = $210,000
Then the 2nd-largest price = $125,000
Fact 2 is INSUFFICIENT

Combined, we have an unlimited number of possible outcomes, including two that we've already noted above (with the least price included):

IF....
The largest price = $200,000
Then the 2nd-largest price = $115,000
Then the least price = $70,000

IF....
The largest price = $210,000
Then the 2nd-largest price = $125,000
Then the least price = $80,000
Combined, INSUFFICIENT

Final Answer: E

GMAT assassins aren't born, they're made,
Rich

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Contact Rich at Rich.C@empowergmat.com

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Post Wed Jul 26, 2017 3:26 pm
jjjinapinch wrote:
Three houses are being sold through a real estate agent. What is the asking price for the house with the second-largest asking price?

(1) The difference between the greatest and the least asking price is $130,000.
(2) The difference between the two greater asking prices is $85,000.
We can let a = the lowest asking price, b = the second-largest asking price, and c = the largest asking price.

We need to determine b.

Statement One Alone:

The difference between the greatest and the least asking price is $130,000.

Thus, c - a = 130,000; however, we cannot determine b. Statement one alone is not sufficient to answer the question.

Statement Two Alone:

The difference between the two greater asking prices is $85,000.

Thus c - b = 85,000. However, without knowing the value of c, statement two alone is not sufficient to answer the question.

Statements One and Two Together:

We have:

c - a = 130,000

and

c - b = 85,000

Even with these two equations, we still cannot determine b.

Answer: E

_________________

Scott Woodbury Stewart Founder & CEO
GMAT Quant Self-Study Course - 500+ lessons 3000+ practice problems 800+ HD solutions
5-Day Free Trial 5-DAY FREE, FULL-ACCESS TRIAL TTP QUANT

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