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OG2015 DS The table above shows

This topic has 1 expert reply and 0 member replies
lionsshare Senior | Next Rank: 100 Posts
Joined
09 Aug 2017
Posted:
62 messages

OG2015 DS The table above shows

Post Sat Sep 16, 2017 10:18 pm


The table above shows the distance, in kilometers, by the most direct route, between any two of the four cities, R, S, T, and U. For example, the distance between City R and City U is 62 kilometers. What is the value of x ?

(1) By the most direct route, the distance between S and T is twice the distance between S and R.
(2) By the most direct route, the distance between T and U is 1.5 times the distance between R and T.

OA: B

Hi, Experts! What is the best approach to solving this problem? Thank you.

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Post Sun Sep 17, 2017 7:43 am
lionsshare wrote:


The table above shows the distance, in kilometers, by the most direct route, between any two of the four cities, R, S, T, and U. For example, the distance between City R and City U is 62 kilometers. What is the value of x ?

(1) By the most direct route, the distance between S and T is twice the distance between S and R.
(2) By the most direct route, the distance between T and U is 1.5 times the distance between R and T.

OA: B

Hi, Experts! What is the best approach to solving this problem? Thank you.
Statement 1:

Distance between S and T = 56;
Distance between S and R = y

=> 56 = 2y => y = 28. We can't get x. Insufficient.

Statement 2:

Distance between T and U = 69;
Distance between R and T = x

=> 69 = 1.5x => x = 46. Sufficient.

The correct answer: B

Hope this helps!

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