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# After the national speed limit of 55 miles per hour was

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Manager
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After the national speed limit of 55 miles per hour was [#permalink]

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01 Dec 2005, 06:51
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After the national speed limit of 55 miles per hour was imposed in 1974, the number of deaths per mile driven on a highway fell abruptly as a result. Since then, however, the average speed of vehicles on highways has risen, but the number of deaths per mile driven on a highway has continued to fall.
Which of the following conclusions can be properly drawn from the statements above?
(A) The speed limit alone is probably not responsible for the continued reduction in highway deaths in the years after 1974.
(B) People have been driving less since 1974.
(C) Driver-education courses have been more effective since 1974 in teaching drivers to drive safely.
(D) In recent years highway patrols have been less effective in catching drivers who speed.
(E) The change in the speed limit cannot be responsible for the abrupt decline in highway deaths in 1974.
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Re: CR: speed limit and accidents [#permalink]

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01 Dec 2005, 11:28
rianah100 wrote:
After the national speed limit of 55 miles per hour was imposed in 1974, the number of deaths per mile driven on a highway fell abruptly as a result. Since then, however, the average speed of vehicles on highways has risen, but the number of deaths per mile driven on a highway has continued to fall.
Which of the following conclusions can be properly drawn from the statements above?
(A) The speed limit alone is probably not responsible for the continued reduction in highway deaths in the years after 1974.
(B) People have been driving less since 1974.
(C) Driver-education courses have been more effective since 1974 in teaching drivers to drive safely.
(D) In recent years highway patrols have been less effective in catching drivers who speed.
(E) The change in the speed limit cannot be responsible for the abrupt decline in highway deaths in 1974.

Average speed has increased but number of deaths per mile driven on the highway has fallen, that means people have been driving less since 1974.

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01 Dec 2005, 11:37
Hmmm...I take on 'A'.
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Re: CR: speed limit and accidents [#permalink]

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01 Dec 2005, 11:38
nakib77 wrote:
rianah100 wrote:
After the national speed limit of 55 miles per hour was imposed in 1974, the number of deaths per mile driven on a highway fell abruptly as a result. Since then, however, the average speed of vehicles on highways has risen, but the number of deaths per mile driven on a highway has continued to fall.
Which of the following conclusions can be properly drawn from the statements above?
(A) The speed limit alone is probably not responsible for the continued reduction in highway deaths in the years after 1974.
(B) People have been driving less since 1974.
(C) Driver-education courses have been more effective since 1974 in teaching drivers to drive safely.
(D) In recent years highway patrols have been less effective in catching drivers who speed.
(E) The change in the speed limit cannot be responsible for the abrupt decline in highway deaths in 1974.

Average speed has increased but number of deaths per mile driven on the highway has fallen, that means people have been driving less since 1974.

when the ppl drive less and a speed limit is imposed, how can the av speed be greater ?

A)...
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01 Dec 2005, 12:32
I like A. Speed decreased, accidents fell. Now, speed has increased, but accidents continue to fall. There must be some other reason why the accident rate decreased.
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01 Dec 2005, 23:40
A agree with desiguy....
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02 Dec 2005, 03:14
A sounds good.There has to be someeother reason.
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02 Dec 2005, 04:32
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02 Dec 2005, 05:08
rianah100 wrote:

I thought of 'E' but it talks only about "deaths in 1974", whereas passage talks about 1974 & thereafter.
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03 Dec 2005, 14:25
OA is A
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03 Dec 2005, 17:30
Got A also.
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03 Dec 2005, 17:56
I was undecided between E&A
What is a good way of determining which one to choose, when faced with the 3:2 split ? (ie. You're sure that 3 are wrong, but undecided on one of two ?)
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03 Dec 2005, 18:00
wlee76 wrote:
I was undecided between E&A
What is a good way of determining which one to choose, when faced with the 3:2 split ? (ie. You're sure that 3 are wrong, but undecided on one of two ?)

Check for basic errors such as scope shift, strong answers. E was clearly a strong answer according to me
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04 Dec 2005, 01:39
A as well.
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