In the telephone number 936-215X, what digit does X represent?
(1) Only one digit in the telephone number is greater than X.
(2) X is the greatest of the digits not among the telephone number's first six digits.
Q/A-b can someone explain
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Ankitaverma
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936-215X
To find: "X"
Statement 1:
X can be 7 & 8
INSUFFICIENT
Statement 2:
Number not in Number = 8,7,4
So, X = 8
SUFFICIENT
Answer [spoiler]{B}[/spoiler]
To find: "X"
Statement 1:
X can be 7 & 8
INSUFFICIENT
Statement 2:
Number not in Number = 8,7,4
So, X = 8
SUFFICIENT
Answer [spoiler]{B}[/spoiler]
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GMATGuruNY
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The first six digits of the phone number are, in ascending order, 1, 2, 3, 5, 6, 9.Ankitaverma wrote:In the telephone number 936-215X, what digit does X represent?
(1) Only one digit in the telephone number is greater than X.
(2) X is the greatest of the digits not among the telephone number's first six digits.
Statement 1:
It's possible that X=7, since the list above includes only one digit greater than 7:
9.
It's possible that X=8, since the list above includes only one digit greater than 8:
9.
INSUFFICIENT.
Statement 2:
The following digits are not included in the list above.
0, 4, 7, 8.
Since X must be the greatest of these 4 digits, X=8.
SUFFICIENT.
The correct answer is B.
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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].
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