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I don't have correct answer to this one....

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I don't have correct answer to this one.... [#permalink] New post 17 Apr 2010, 00:45
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Two people walked the same distance, one person's speed is between 25 and 45,and if he used 4 hours, the speed of another people is between 45 and 60,and if he used 2 hours, how long is the distance?
A.116 B.118 C.124 D.136 E.140
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Re: I don't have correct answer to this one.... [#permalink] New post 17 Apr 2010, 05:00
utin wrote:
Two people walked the same distance, one person's speed is between 25 and 45,and if he used 4 hours, the speed of another people is between 45 and 60,and if he used 2 hours, how long is the distance?
A.116 B.118 C.124 D.136 E.140



Language is not clear in this question (dont know he is used for 1st or 2nd person)
Its more like a verbal (SC) question :wink:
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Re: I don't have correct answer to this one.... [#permalink] New post 17 Apr 2010, 05:43
utin wrote:
Two people walked the same distance, one person's speed is between 25 and 45,and if he used 4 hours, the speed of another people is between 45 and 60,and if he used 2 hours, how long is the distance?
A.116 B.118 C.124 D.136 E.140

this problem is ambiguous, all options between 110 &120 satisfy the condition. dont know if qestion is properly worded.
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Re: I don't have correct answer to this one.... [#permalink] New post 17 Apr 2010, 11:44
25 < v1 < 45
45 < v2 < 60

distance is same thus 4v1 = 2v2 => 2v1 = v2

if v1 = 26 => v2 = 52 , distance will be 2v2 = 104
if v1 = 27 => v2 = 54 , distance will be 2v2 = 108
if v1 = 28 => v2 = 56 , distance will be 2v2 = 112
if v1 = 29 => v2 = 58 , distance will be 2v2 = 116

only 116 is there, thus A
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Re: I don't have correct answer to this one.... [#permalink] New post 17 Apr 2010, 12:22
gurpreetsingh wrote:
25 < v1 < 45
45 < v2 < 60

distance is same thus 4v1 = 2v2 => 2v1 = v2

if v1 = 26 => v2 = 52 , distance will be 2v2 = 104
if v1 = 27 => v2 = 54 , distance will be 2v2 = 108
if v1 = 28 => v2 = 56 , distance will be 2v2 = 112
if v1 = 29 => v2 = 58 , distance will be 2v2 = 116

only 116 is there, thus A


What if v1 = 29.5 => v2 = 59
Hence answer = 118

Language is not clear here
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Re: I don't have correct answer to this one.... [#permalink] New post 17 Apr 2010, 12:33
what is the source of this question?
Re: I don't have correct answer to this one....   [#permalink] 17 Apr 2010, 12:33
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