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# Driving at 48 miles per hour, how many minutes will take to drive 32

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Math Expert
Joined: 02 Sep 2009
Posts: 56303
Driving at 48 miles per hour, how many minutes will take to drive 32  [#permalink]

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15 Jul 2018, 08:50
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Difficulty:

15% (low)

Question Stats:

79% (01:01) correct 21% (01:09) wrong based on 58 sessions

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Driving at 48 miles per hour, how many minutes will take to drive 32 miles?

A. 2/3
B. 3/2
C. 40
D. 45
E. 2400

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Re: Driving at 48 miles per hour, how many minutes will take to drive 32  [#permalink]

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15 Jul 2018, 09:03
Top Contributor
Bunuel wrote:
Driving at 48 miles per hour, how many minutes will take to drive 32 miles?

A. 2/3
B. 3/2
C. 40
D. 45
E. 2400

Ans. C.40

Distance = Speed x Time (1 hour/60 minutes)
So, [60/48]*32
= 40
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Re: Driving at 48 miles per hour, how many minutes will take to drive 32  [#permalink]

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15 Jul 2018, 10:18
Bunuel wrote:
Driving at 48 miles per hour, how many minutes will take to drive 32 miles?

A. 2/3
B. 3/2
C. 40
D. 45
E. 2400

For 48 miles we need 60 minutes

For 1 mile we need 60 /48 minutes

For 32 miles we need (60/48)*32 minutes

= 40 minutes

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Driving at 48 miles per hour, how many minutes will take to drive 32  [#permalink]

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15 Jul 2018, 11:16
Bunuel wrote:
Driving at 48 miles per hour, how many minutes will take to drive 32 miles?

A. 2/3
B. 3/2
C. 40
D. 45
E. 2400

$$\frac{32}{48}*60$$

= 40 , Answer must be (C)
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Driving at 48 miles per hour, how many minutes will take to drive 32  [#permalink]

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15 Jul 2018, 11:42
Bunuel wrote:
Driving at 48 miles per hour, how many minutes will take to drive 32 miles?

A. 2/3
B. 3/2
C. 40
D. 45
E. 2400

I. Distance/rate= time

Rate: $$\frac{48mi}{1hr}=\frac{48mi}{60 mins}=\frac{4mi}{5mins}$$

TIME needed to drive 32 miles ($$\frac{D}{r} = t$$):
$$\frac{32}{(\frac{4}{5})}=(32*\frac{5}{4})=40$$ minutes

II. Proportion

Rate in minutes:
$$\frac{48mi}{1hr}*\frac{1hr}{60mins}=\frac{48mi}{60mins}=\frac{4mi}{5mins}$$

TIME needed to drive 32 miles?
$$\frac{4mi}{5mins}=\frac{32mi}{T minutes}$$
$$4T=(5*32)$$

$$T=40$$ minutes

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Re: Driving at 48 miles per hour, how many minutes will take to drive 32  [#permalink]

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15 Jul 2018, 13:32
48 miles -- 1 hour
32 miles -- x hour

x=$$\frac{32}{48}$$=$$\frac{2}{3}$$ Hour
$$\frac{2}{3}$$ Hour --> $$\frac{2}{3}$$*60=40 minutes

IMO
Ans: C
Re: Driving at 48 miles per hour, how many minutes will take to drive 32   [#permalink] 15 Jul 2018, 13:32
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