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04 Dec 2007, 20:37
2
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Question Stats:

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A certain taxi company charges $3.10 for the first 1/5 of a mile plus$0.40 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. 15.60
B. 16.00
C. 17.50
D. 18.70
E. 19.10
[Reveal] Spoiler: OA
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04 Dec 2007, 20:57
goodglory wrote:
A certain taxi company charges $3.10 for the first 1/5 of a mile plus .40 for each addtional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long? A. 15.60 B. 16.00 C. 17.50 D. 18.70 E. 19.10 so 3.10 for first 1/5mile and .4* so how many 1/5's in 7 and 4/5 miles? well 5 per 7 and 4 for 4/5 So should be. 3.10 + (.4*5)*7 + .4*4 --> 3.10 + 14+1.6 = 18.70 D SVP Joined: 29 Aug 2007 Posts: 2476 Followers: 70 Kudos [?]: 774 [0], given: 19 Re: Taxi Company PLEASE HELP [#permalink] ### Show Tags 04 Dec 2007, 21:22 goodglory wrote: A certain taxi company charges$3.10 for the first 1/5 of a mile plus .40 for each addtional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. 15.60
B. 16.00
C. 17.50
D. 18.70
E. 19.10

= 3.10 + (8 - 0.2) 0.4/0.2
= 3.10 + 15.6
= 18.7
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04 Dec 2007, 21:26
I am confused because 1/5 of a mile is 1.6.
1/5 of 8 miles is 1.6 and then there are 6.4 miles left?

I don't get it?!
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04 Dec 2007, 21:59
6
KUDOS
goodglory wrote:
A certain taxi company charges $3.10 for the first 1/5 of a mile plus .40 for each addtional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long? A. 15.60 B. 16.00 C. 17.50 D. 18.70 E. 19.10 How many 1/5 miles does 8 miles contain? = 8/(1/5) = 40 Charge for first 1/5 mile = 3.10 Charge for remaining 39 1/5 miles = 39*.4 = 15.6 Total charge = 15.6 + 3.10 = 18.70 SVP Joined: 04 May 2006 Posts: 1902 Schools: CBS, Kellogg Followers: 23 Kudos [?]: 1122 [0], given: 1 Re: Taxi Company PLEASE HELP [#permalink] ### Show Tags 04 Dec 2007, 22:45 GMAT TIGER wrote: goodglory wrote: A certain taxi company charges$3.10 for the first 1/5 of a mile plus .40 for each addtional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. 15.60
B. 16.00
C. 17.50
D. 18.70
E. 19.10

= 3.10 + (8 - 0.2) 0.4/0.2
= 3.10 + 15.6
= 18.7

Dear Gmatiger

Can you help me to understand why the result must be divided into 0.2?
I am confused!
Thanks,
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05 Dec 2007, 17:52
1
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sondenso wrote:
GMAT TIGER wrote:
goodglory wrote:

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23 Feb 2013, 06:42
I don't understand the calculations for this problem I'm getting 3.12 when I calculate 7.8 * 0.4
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23 Feb 2013, 08:08
why are we dividing by 0.2?
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Re: A certain taxi company charges $3.10 for the first 1/5 of a [#permalink] ### Show Tags 23 Feb 2013, 08:11 fozzzy wrote: why are we dividing by 0.2? We need to find the number of 0.2 miles in 7.8 miles ($0.40 for each).
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16 Aug 2013, 09:18
goodglory wrote:
I am confused because 1/5 of a mile is 1.6.
1/5 of 8 miles is 1.6 and then there are 6.4 miles left?

I don't get it?!

I just find the problem about the 1.6
in this question, it says 1/5 of a mile, not 1/5 mile of a mile
you see, that's why we do not need to use 8 mile divided by 1/5
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24 Jun 2015, 14:29
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14 Nov 2016, 00:27
1
KUDOS
goodglory wrote:
A certain taxi company charges $3.10 for the first 1/5 of a mile plus$0.40 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. 15.60
B. 16.00
C. 17.50
D. 18.70
E. 19.10

8 Miles = 40 parts... ( Each mile = 1/5 mile )

Charges for 1st part = $3.10 Charges for 39 reamaining part = 0.40 * 39 = 15.60 So, Total charges for 8 miles ( ie, 40 parts ) is 18.70 ( ie, 3.10 + 15.60 ) Hence, answer will be (D) _________________ Thanks and Regards Abhishek.... PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only ) Target Test Prep Representative Status: Head GMAT Instructor Affiliations: Target Test Prep Joined: 04 Mar 2011 Posts: 910 Followers: 34 Kudos [?]: 510 [0], given: 5 Re: A certain taxi company charges$3.10 for the first 1/5 of a [#permalink]

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16 Nov 2016, 09:00
goodglory wrote:
A certain taxi company charges $3.10 for the first 1/5 of a mile plus$0.40 for each additional 1/5 of a mile. What would this company charge for a taxi ride that was 8 miles long?

A. 15.60
B. 16.00
C. 17.50
D. 18.70
E. 19.10

We know that for the first 1/5 mile of the 8-mile trip, the taxi company charges $3.10. For the next 7 4/5 miles, each 1/5 of a mile will cost$0.40. We need to find out how many 1/5s are in 7 4/5.

Since 7 4/5 = 39/5, there are 39 1/5s in 7 4/5. Therefore, the total cost of the 8-mile trip would be:

$3.10 + 39($0.40)

$3.10 +$15.60

$18.70 Answer: D _________________ Jeffery Miller Head of GMAT Instruction GMAT Quant Self-Study Course 500+ lessons 3000+ practice problems 800+ HD solutions Re: A certain taxi company charges$3.10 for the first 1/5 of a   [#permalink] 16 Nov 2016, 09:00
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