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# If x, y, and z are positive integers and 3x = 4y = 7z, then

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VP
Joined: 22 Nov 2007
Posts: 1078

Kudos [?]: 702 [0], given: 0

If x, y, and z are positive integers and 3x = 4y = 7z, then [#permalink]

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01 Dec 2007, 10:06
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If x, y, and z are positive integers and 3x = 4y = 7z, then the least possible value of x + y + z is

(A) 33
(B) 40
(C) 49
(D) 61
(E) 84

Kudos [?]: 702 [0], given: 0

CEO
Joined: 17 Nov 2007
Posts: 3583

Kudos [?]: 4723 [0], given: 360

Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40

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01 Dec 2007, 10:34
D.

3x = 4y = 7z =3*4*7

x=4*7, y=3*7, z=3*4

x+y+z=28+21+12=61

Kudos [?]: 4723 [0], given: 360

VP
Joined: 22 Nov 2007
Posts: 1078

Kudos [?]: 702 [0], given: 0

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01 Dec 2007, 10:40
yes, that's right!

Kudos [?]: 702 [0], given: 0

01 Dec 2007, 10:40
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# If x, y, and z are positive integers and 3x = 4y = 7z, then

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