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# As a bicycle salesperson, Norman earns a fixed salary of $20  post reply Question banks Downloads My Bookmarks Reviews Important topics Author Message Intern Joined: 01 Dec 2007 Posts: 31 Followers: 1 Kudos [?]: 17 [0], given: 0 As a bicycle salesperson, Norman earns a fixed salary of$20 [#permalink]

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09 Dec 2007, 15:19
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As a bicycle salesperson, Norman earns a fixed salary of $20 per week plus$6 per bicycle for the first six bicycles he sells, $12 per bicycle for the next six bicycles he sells, and$18 per bicycle for every bicycle sold after the first 12. This week, Norman earned more than twice as much as he did last week. If he sold x bicycles last week and y bicycles this week, which of the following statements must be true?

I. y > 2x

II. y > x

III. y > 3

I only
II only
I and II
II and III
I, II, and III
Intern
Joined: 13 Jun 2007
Posts: 48
Followers: 1

Kudos [?]: 8 [0], given: 0

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09 Dec 2007, 15:50
D.

I. wrong if you have x=1000 then y will be a similar number and not >2
II. correct. if x=0 the payment of this week >=40 therefore y>=4
III. correct. if you consider worst case where x=0 then y>=4
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