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# A cell phone plan costs 20 dollars each month, plus 5 cents per text

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Math Expert
Joined: 02 Sep 2009
Posts: 58396
A cell phone plan costs 20 dollars each month, plus 5 cents per text  [#permalink]

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31 Mar 2019, 21:27
00:00

Difficulty:

25% (medium)

Question Stats:

85% (01:04) correct 15% (00:59) wrong based on 13 sessions

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A cell phone plan costs 20 dollars each month, plus 5 cents per text message sent, plus 10 cents for each minute used over 30 hours. In January Michelle sent 100 text messages and talked for 30.5 hours. How much did she have to pay?

A. 24
B. 24.5
C. 25.5
D. 28
E. 30

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Concentration: Strategy, Marketing
Schools: CBS '21, Yale '21, INSEAD
GMAT 1: 670 Q50 V31
GMAT 2: 720 Q50 V37
WE: Marketing (Telecommunications)
Re: A cell phone plan costs 20 dollars each month, plus 5 cents per text  [#permalink]

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31 Mar 2019, 21:31
1
Bunuel wrote:
A cell phone plan costs 20 dollars each month, plus 5 cents per text message sent, plus 10 cents for each minute used over 30 hours. In January Michelle sent 100 text messages and talked for 30.5 hours. How much did she have to pay?

A. 24
B. 24.5
C. 25.5
D. 28
E. 30

Text messages = 100
Call made = 30.5 hours = 30 hours and 30 minutes

Total Payment = 20\$ + 100*0.05 + 0.1*30 = 20 + 5 + 3 = 28\$
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Re: A cell phone plan costs 20 dollars each month, plus 5 cents per text  [#permalink]

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01 Apr 2019, 03:53
Bunuel wrote:
A cell phone plan costs 20 dollars each month, plus 5 cents per text message sent, plus 10 cents for each minute used over 30 hours. In January Michelle sent 100 text messages and talked for 30.5 hours. How much did she have to pay?

A. 24
B. 24.5
C. 25.5
D. 28
E. 30

total cost
30.5 * 60 ; 1830 mins ; 30 mins extra
20+ 5*100 'cents' + 10*30 ' cents'
28\$
IMO D
Re: A cell phone plan costs 20 dollars each month, plus 5 cents per text   [#permalink] 01 Apr 2019, 03:53
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