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What is the value of the two-digit number XY, where X

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Intern
Joined: 29 Apr 2005
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What is the value of the two-digit number XY, where X [#permalink]

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26 May 2005, 03:38
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What is the value of the two-digit number XY, where X represents the tens digit and Y represents the units digit?

(1) The product of the digits is 12.

(2) The sum of the digits is 8.
Director
Joined: 13 Nov 2003
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26 May 2005, 04:05
A) can be 6 and 2 or 4 and 3. Insuff
B)can be 2 and 6 or 1 and 7 . Insuff.
From both we see that it is 2 and 6 but we can say NOTHING about the value of the number , if it is 26 or 62
The ans should be E)
Director
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26 May 2005, 15:50
E.

1. Product 4*3, 6*2
2. Sum - many sums

together - insufficient because it can be either 62 or 26
Director
Joined: 07 Jun 2004
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26 May 2005, 17:31
using I and II we can get 6 and 2 but we dont knwo which is 6 and which is 2 so its

E
Director
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30 May 2005, 23:41
No doubt E
same reasoning as others
GMAT Club Legend
Joined: 07 Jul 2004
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31 May 2005, 00:02
From statement 1, we have X*Y = 12

Possible values:
X Y
2 6
3 4
6 2
4 3

So (1) is not sufficient.

From statement 2, we have X+Y = 8
Possible values
X Y
1 7
2 6
3 5
4 4
5 3
6 2
7 1

So (2) is not sufficient

Using (1) and (2), XY can be 62 or 26. So answer is (E)
Current Student
Joined: 28 Dec 2004
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31 May 2005, 06:47
almost picked C,,,,

we dont know if 6 is the unit digit or 2?

E it is...read carefully all the questions.....If I can only be as sharp as RX on the exam day........
31 May 2005, 06:47
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