How many people are standing in line?
(1) Three people are standing in front of Alan and three people are standing behind David.
(2) Two people are standing between Alan and David.
Can some experts figure it out?
OA E
How many people are standing in line
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Statements combined:lheiannie07 wrote:How many people are standing in line?
(1) Three people are standing in front of Alan and three people are standing behind David.
(2) Two people are standing between Alan and David.
Case 1: Back<-----A, X, X, D----->Front
Here, there are two people between Alan and David (X, X), 3 people in front of Alan (X, X, D), and 3 people behind David (A, X, X).
Total number of people = 4.
Case 2: Back<-----X, X, X, D, X, X, A, X, X, X----->Front
Here, there are two people between Alan and David (X, X), 3 people in front of Alan (X, X, X), and 3 people behind David (X, X, X).
Total number of people = 10.
Since the total number of people can be different values, the two statements combined are INSUFFICIENT.
The correct answer is E.
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Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
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