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# If x = 0. rstu, where r, s, t, and u each represent a

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Intern
Joined: 23 Oct 2008
Posts: 23
Followers: 0

Kudos [?]: 13 [1] , given: 0

If x = 0. rstu, where r, s, t, and u each represent a [#permalink]  24 Nov 2008, 02:43
1
KUDOS
If x = 0. rstu, where r, s, t, and u each represent a nonzero digit of x, what is the value of x?

(1) r = 3s = 2t = 6u
(2) The product of r and u is equal to the product of s and t

Manager
Joined: 18 Nov 2008
Posts: 117
Followers: 1

Kudos [?]: 10 [0], given: 0

Re: Data Sufficient [#permalink]  24 Nov 2008, 02:50
1) suff., only 0,6231 satisfies
2) insuff., can be 1236, 1326, 6231, 1212...

A

Last edited by atletikos on 24 Nov 2008, 02:52, edited 1 time in total.
Manager
Joined: 23 Nov 2008
Posts: 77
Followers: 1

Kudos [?]: 34 [0], given: 0

Re: Data Sufficient [#permalink]  24 Nov 2008, 02:51
The question says x = 0.rstu for e.g. 0.1234. With the information given, they are looking for us to find all four digits.

1) each of r, s, t, u are <10 (since they are digits in x)
if r=6u, then u must be 1 => you can find x .........suff

2) Doesnt help, ru=st, can be anything at all, specially since we dont know if rust can all be the same numbers or not........insuff

A
Intern
Joined: 23 Oct 2008
Posts: 23
Followers: 0

Kudos [?]: 13 [0], given: 0

Re: Data Sufficient [#permalink]  24 Nov 2008, 23:55
understood. thanks
VP
Joined: 05 Jul 2008
Posts: 1433
Followers: 35

Kudos [?]: 254 [0], given: 1

Re: Data Sufficient [#permalink]  25 Nov 2008, 20:46
only u = 1 satisfies the condition of digits. if u=2, r becomes 12 and does not fit. Hence A
Re: Data Sufficient   [#permalink] 25 Nov 2008, 20:46
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