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# A doctor prescribed 18 cubic centimeters of a certain drug

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Manager
Joined: 11 Sep 2005
Posts: 245
A doctor prescribed 18 cubic centimeters of a certain drug  [#permalink]

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30 Sep 2007, 01:12
1
2
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Question Stats:

100% (01:16) correct 0% (00:00) wrong based on 230 sessions

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A doctor prescribed 18 cubic centimeters of a certain drug to a patient whose body weight was 120 pounds. If the typical dosage is 2 cubic centimeters per 15 pounds of body weight, by what percent was the prescribed dosage greater than the typical dosage?

A. 8
B. 9
C. 11
D. 12.5
E. 14.8

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Manager
Joined: 09 Jul 2007
Posts: 139
Re: A doctor prescribed 18 cubic centimeters of a certain drug  [#permalink]

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30 Sep 2007, 01:33
1
D..

typical dose is 2cu cm/15 pds
so typical dose for 120 pds patient is 16 cu cm (15*8=120 so 2*8=16)

in order to find % greater den d prescribed dose 18-16=(2/16)100=(1/8)100=12.5
Director
Joined: 09 Jul 2007
Posts: 909
Location: London
Re: A doctor prescribed 18 cubic centimeters of a certain drug  [#permalink]

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30 Sep 2007, 01:35
singh_amit19 wrote:
A doctor prescribed 18 cubic centimeters of a certain drug to a patient whose body weight was 120 pounds. If the typical dosage is 2 cubic centimeters per 15 pounds of body weight, by what percent was the prescribed dosage greater than the typical dosage?

A. 8
B. 9
C. 11
D. 12.5
E. 14.8

18/60-2/15=1/60

(1/60)/(2/15)=1/8

(1/8)*100=12.5
D
Director
Joined: 08 Jun 2005
Posts: 905
Re: A doctor prescribed 18 cubic centimeters of a certain drug  [#permalink]

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30 Sep 2007, 06:13
Ravshonbek wrote:
singh_amit19 wrote:
A doctor prescribed 18 cubic centimeters of a certain drug to a patient whose body weight was 120 pounds. If the typical dosage is 2 cubic centimeters per 15 pounds of body weight, by what percent was the prescribed dosage greater than the typical dosage?

A. 8
B. 9
C. 11
D. 12.5
E. 14.8

18/60-2/15=1/60

(1/60)/(2/15)=1/8

(1/8)*100=12.5
D

Perfect !

I second (D)

Non-Human User
Joined: 09 Sep 2013
Posts: 13388
Re: A doctor prescribed 18 cubic centimeters of a certain drug  [#permalink]

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20 Sep 2018, 08:22
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Re: A doctor prescribed 18 cubic centimeters of a certain drug   [#permalink] 20 Sep 2018, 08:22
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