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If Nicole worked 20% more this week than she worked last

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Senior Manager
Joined: 29 Jan 2011
Posts: 349

Kudos [?]: 241 [0], given: 87

If Nicole worked 20% more this week than she worked last [#permalink]

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20 Jun 2011, 22:16
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Difficulty:

35% (medium)

Question Stats:

73% (00:14) correct 27% (00:20) wrong based on 15 sessions

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If Nicole worked 20% more this week than she worked last week, how many hours did she work last week?

(1) Nicole worked 36 hours this week.

(2) Nicole worked 6 more hours this week than she worked last week.
[Reveal] Spoiler: OA

Last edited by siddhans on 20 Jun 2011, 22:28, edited 1 time in total.

Kudos [?]: 241 [0], given: 87

SVP
Joined: 16 Nov 2010
Posts: 1605

Kudos [?]: 581 [0], given: 36

Location: United States (IN)
Concentration: Strategy, Technology
Re: MGMAT DS [#permalink]

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20 Jun 2011, 22:20
Let Nicole's work hours be H last week

(1) Nicole worked 36 hours this week.

So 36 = 1.2H
=> H = 30 hrs

Sufficient

(2) Nicole worked 6 more hours this week than she worked last week.

1.2H - H = 6

=> 0.2H = 6

=> H = 6 * 10/2

=> H = 30 hrs

Sufficient

Answer - D
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Kudos [?]: 581 [0], given: 36

Re: MGMAT DS   [#permalink] 20 Jun 2011, 22:20
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If Nicole worked 20% more this week than she worked last

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