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# An Internet café offers Internet access at the rates of \$3 per half ho

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Math Expert
Joined: 02 Sep 2009
Posts: 58445
An Internet café offers Internet access at the rates of \$3 per half ho  [#permalink]

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18 Feb 2019, 04:25
00:00

Difficulty:

55% (hard)

Question Stats:

53% (02:05) correct 47% (01:48) wrong based on 17 sessions

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An Internet café offers Internet access at the rates of \$3 per half hour for the first two hours and \$2 for every half hour after that. If Charlene used the Internet at the café for x + 5 hours, how much money, in terms of x, did she have to pay?

A. 2x + 18
B. 2x + 15
C. 2x + 12
D. 4x + 24
E. 4x + 48

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Joined: 18 Aug 2017
Posts: 5021
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: An Internet café offers Internet access at the rates of \$3 per half ho  [#permalink]

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18 Feb 2019, 04:57
Bunuel wrote:
An Internet café offers Internet access at the rates of \$3 per half hour for the first two hours and \$2 for every half hour after that. If Charlene used the Internet at the café for x + 5 hours, how much money, in terms of x, did she have to pay?

A. 2x + 18
B. 2x + 15
C. 2x + 12
D. 4x + 24
E. 4x + 48

given
rates of \$3 per half hour for the first two hours ; per hour 6\$ and 2 hours 12 \$
also
\$2 for every half hour after that. ; 4 \$ per hour

so for x+5 ; let x =1 ; 6 hrs charge
12 + 4* 4 = 28 \$
or say
4x+ 24 ; x = 1 ; 28
IMO D
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Joined: 13 Oct 2018
Posts: 85
Location: India
GPA: 3.1
WE: Information Technology (Computer Software)
Re: An Internet café offers Internet access at the rates of \$3 per half ho  [#permalink]

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18 Feb 2019, 05:04
x+5 hours = 2 hours + x+3 hours

Money paid = (4 half hours) * 3 + (x+3)2 Half hours * 2
= 4*3 + 4x+12
= 12+4x+12 = 4x+24
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Ankit
GMAT is tough so I am ...
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Re: An Internet café offers Internet access at the rates of \$3 per half ho   [#permalink] 18 Feb 2019, 05:04
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