A car covers a certain distance in 45 mins if it runs at 60 : Quant Question Archive [LOCKED]
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# A car covers a certain distance in 45 mins if it runs at 60

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A car covers a certain distance in 45 mins if it runs at 60 [#permalink]

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12 Feb 2004, 14:27
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

A car covers a certain distance in 45 mins if it runs at 60 mph and if the speed increases by two times tehn find the time taken to cover the same distance?
30
22 1/2min
20
none
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shubhangi

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12 Feb 2004, 14:31
15 mins. I thought the new speed to be 180 mph.
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12 Feb 2004, 14:34
my guess is ..there's no need to calculate.. its just logic.. if speed doubles then time will be half
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shubhangi

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12 Feb 2004, 14:37
but the wording is "speed increases by two times" and not "speed doubled". Then in that case its 1/3 rd of the original time.
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12 Feb 2004, 14:41
rakesh1239 wrote:
15 mins. I thought the new speed to be 180 mph.

Man! your eyes are sharp as an Eagle

Last edited by kpadma on 12 Feb 2004, 15:04, edited 1 time in total.
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12 Feb 2004, 14:58
15 mins

Rakesh..that was a good catch...it still can be logically deduced.

You must be busy....coz I have not seen you around latley.

Vivek.
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12 Feb 2004, 15:00
Yeah Vivek, was very busy at my Job and uffffff this GMAT.
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12 Feb 2004, 15:47
How did you get 15 anyways..??
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shubhangi

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12 Feb 2004, 16:00
distance is 45 miles and speed is 180 mph. Calculate the time taken.
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12 Feb 2004, 16:03
What is the source of this question? seems the editor is pretty weak in verbal like me.
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12 Feb 2004, 16:06
It was from a study material from a private tutorials..
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shubhangi

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12 Feb 2004, 16:09
hmmmmmm...... thought so.
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12 Feb 2004, 19:44
rate = distance/time
distance = 60 * 45 = 2,700
120 mph = 2,700/t
t= 2,700/120 = 22.5
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13 Feb 2004, 01:25
22.5 is the answer, if speed becomes 120.
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13 Feb 2004, 07:38
that was good and very easy way piggybob.. how come i could'tn seee that ...??
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