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Angelina walked 360 meters from her home to the grocery at a constant

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Angelina walked 360 meters from her home to the grocery at a constant  [#permalink]

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New post 15 Jan 2016, 16:13
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Question Stats:

65% (01:59) correct 35% (01:58) wrong based on 86 sessions

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Angelina walked 360 meters from her home to the grocery at a constant speed. She then walked 480 meters to the gym at double the speed. She spent 40 seconds less on her way from the grocery to the gym than on her way from home to the grocery. What was Angelina's speed, in meters per second, from the grocery to the gym?

A. 2
B. 3
C. 4
D. 6
E. 12
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Re: Angelina walked 360 meters from her home to the grocery at a constant  [#permalink]

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New post 15 Jan 2016, 21:48
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MK1480 wrote:
Angelina walked 360 meters from her home to the grocery at a constant speed. She then walked 480 meters to the gym at double the speed. She spent 40 seconds less on her way from the grocery to the gym than on her way from home to the grocery. What was Angelina's speed, in meters per second, from the grocery to the gym?

A. 2
B. 3
C. 4
D. 6
E. 12


Hi,

let the speed be X...
so time taken from home to grocery= 360/x..

the speed to gym = 2x..
so time taken = 480/2x=240/x..

its given 360/x-240/x=40..
120/x=40..
x=3m/secs..
so grocery to gym=2*3=6m/s...
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Re: Angelina walked 360 meters from her home to the grocery at a constant  [#permalink]

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New post 11 Dec 2017, 07:09
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Re: Angelina walked 360 meters from her home to the grocery at a constant &nbs [#permalink] 11 Dec 2017, 07:09
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