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# The toll for crossing the bridge is $0.75 each crossing.  post reply Question banks Downloads My Bookmarks Reviews Important topics Author Message Manager Joined: 23 Mar 2008 Posts: 218 Followers: 3 Kudos [?]: 155 [0], given: 0 The toll for crossing the bridge is$0.75 each crossing. [#permalink]

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01 May 2008, 21:28
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The toll for crossing the bridge is $0.75 each crossing. Drivers who frequently use the bridge may instead purchase a sticker each month for$13.00 and then pay only $0.30 each crossing during that month. If a particular driver will cross the bridge twice on each of x days next month and will not cross the bridge on any other day, what is the least value of x for which thius driver can save money using the sticker? a) 14 b) 15 c) 16 d) 28 e) 29 Intern Joined: 28 Apr 2008 Posts: 15 Followers: 0 Kudos [?]: 1 [0], given: 0 Re: bridge [#permalink] ### Show Tags 01 May 2008, 21:49 I got B:15, as (.75x)(2) is the cost without sticker and it must be greater than 13 + (.3x)(2) - cost with sticker *First time I solved, forgot to multiple .3 by two and got way off so the equation would be: (.75x)(2) > 13 + (.3x)(2) 1.5x > 13 + .6x .9x>13 9x>130 x> 14.4444 x=15 Intern Joined: 28 Mar 2008 Posts: 34 Followers: 0 Kudos [?]: 3 [0], given: 0 Re: bridge [#permalink] ### Show Tags 02 May 2008, 10:33 1.5X = .6x + 13 x= 130/9 14.4 atleast 15 days to make profit B Re: bridge [#permalink] 02 May 2008, 10:33 Display posts from previous: Sort by # The toll for crossing the bridge is$0.75 each crossing.

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