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Jacques Leswift and Andy Flasch are the top two cyclists in the world

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Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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New post 26 Aug 2015, 10:14
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Jacques Leswift and Andy Flasch are the top two cyclists in the world and constantly compete for first place on the international road cycling tour. When Leswift is at maximum pace, his ratio of protein content to body temperature increases by 11.9% from its regular state. When Flasch is at maximum pace, the same ratio only increases by 8.6%. As part of a research project, the maximum pace ratios of a control group of moderately successful cyclists were measured and an average was calculated. Scientists compared the data and noted that a high ratio positively influences an athletic performance.

The statements above, if true, best support which of the following as a conclusion?

A) In general, Leswift achieves a higher athletic performance level than Flasch does as his maximum pace ratio is higher.
B) When compared, the average of the maximum pace ratios of Leswift and Flasch exceeded the average of the control group.
C) Statistically, Flasch has a lower chance of winning a cycling race against Leswift.
D) Leswift's regular state protein content to body temperature ratio is higher than that of the cyclists in the control group.
E) To reach maximum pace, the control group's ratio increased by a smaller amount than that of Flasch and Leswift.
[Reveal] Spoiler: OA

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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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New post 26 Aug 2015, 19:31
Why not A? B and D are similar to each other..

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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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New post 26 Aug 2015, 19:38
Can someone explain how OA is B?

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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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New post 26 Aug 2015, 21:33
This seems to be quite twisted!...waiting for OE!

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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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New post 26 Aug 2015, 22:47
dina98 wrote:
Why not A? B and D are similar to each other..


Hello dina98

We have some numbers in this argument so it is better to make example with numbers
Cyclist A has initial ratio 100 and increase on 11.9% --> final ratio 119
Cyclist B has initial ratio 100 and increase on 8.6% --> final ratio 108.6

After measuring moderate control group scientists noted that a high ratio positively influences an athletic performance.

So we know that control group had lower ratio. For example their final ratio was 100
But what was its initial ratio? It could be 99 or it could be 20
In first case we have increase on 1% in second on 400%

A) In general, Leswift achieves a higher athletic performance level than Flasch does as his maximum pace ratio is higher.
Incorrect. We know nothing about "general" state of Leswift. He could have some fluctuations in his ratio

B) When compared, the average of the maximum pace ratios of Leswift and Flasch exceeded the average of the control group.
Correct. We know that final ratio of control group was lower than final ratio of two successful cyclists

C) Statistically, Flasch has a lower chance of winning a cycling race against Leswift.
Incorrect. We know nothing about statistic of their competetions

D) Leswift's regular state protein content to body temperature ratio is higher than that of the cyclists in the control group.
Incorrect. We know nothing about "regular" state of Leswift

E) To reach maximum pace, the control group's ratio increased by a smaller amount than that of Flasch and Leswift.
Incorrect. We know nothing about amount of increase. It can be 1% or it can be 400% as was mentioned in example above.
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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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New post 27 Aug 2015, 07:20
Harley1980 wrote:
Jacques Leswift and Andy Flasch are the top two cyclists in the world and constantly compete for first place on the international road cycling tour. When Leswift is at maximum pace, his ratio of protein content to body temperature increases by 11.9% from its regular state. When Flasch is at maximum pace, the same ratio only increases by 8.6%. As part of a research project, the maximum pace ratios of a control group of moderately successful cyclists were measured and an average was calculated. Scientists compared the data and noted that a high ratio positively influences an athletic performance.

The statements above, if true, best support which of the following as a conclusion?

A) In general, Leswift achieves a higher athletic performance level than Flasch does as his maximum pace ratio is higher.
B) When compared, the average of the maximum pace ratios of Leswift and Flasch exceeded the average of the control group.
C) Statistically, Flasch has a lower chance of winning a cycling race against Leswift.
D) Leswift's regular state protein content to body temperature ratio is higher than that of the cyclists in the control group.
E) To reach maximum pace, the control group's ratio increased by a smaller amount than that of Flasch and Leswift.


I also selected ‘A’ at first but reading the argument multiple times made me realise that I was not correct.

Argument says few things:-
Facts- JL and AF are two top cyclists.
At maximum pace JL’s protein/body temperature ratio increases > AF’s ratio increase

A research was conducted of maximum ratio for moderately successful cyclists and average was calculated.
Scientists hypothesise that high ratio is directly proportional to high performance

A) In general, Leswift achieves a higher athletic performance level than Flasch does as his maximum pace ratio is higher. Look at the hypothesis result. It says that overall ratio is responsible for high athletic performance. We are given the ratio at only maximum pace and not at the minimum/medium pace. What if Leswift has different ratios all the while ranging between 1-11.9; whereas, AF maintains his maximum ratio throughout game. In this case AF’s ratio will be more than JL and he will have high athletic performance.
B) When compared, the average of the maximum pace ratios of Leswift and Flasch exceeded the average of the control group. Well, it is given that JL and AF are two top performers. Hence, their overall ratios will be more than the control group because control group is of moderate athletes. And JL’s and AF’s maximum pace ratio will certainly be higher than overall average ratio of control group.
C) Statistically, Flasch has a lower chance of winning a cycling race against Leswift. We are not talking about winning. We are just concerned about athletic performances
D) Leswift’s regular state protein content to body temperature ratio is higher than that of the cyclists in the control group. This choice talks about all the cyclists and not the average of control group.
E) To reach maximum pace, the control group’s ratio increased by a smaller amount than that of Flasch and Leswift. We are not given any such information.

Hope it helps.
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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world [#permalink]

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New post 29 Oct 2017, 12:34
Jacques Leswift and Andy Flasch are the top two cyclists in the world and constantly compete for first place on the international road cycling tour. When Leswift is at maximum pace, his ratio of protein content to body temperature increases by 11.9% from its regular state. When Flasch is at maximum pace, the same ratio only increases by 8.6%. As part of a research project, the maximum pace ratios of a control group of moderately successful cyclists were measured and an average was calculated. Scientists compared the data and noted that a high ratio positively influences an athletic performance.

The statements above, if true, best support which of the following as a conclusion?

A) In general, Leswift achieves a higher athletic performance level than Flasch does as his maximum pace ratio is higher. -We just know that the percentage increase in ratio is higher in case of Les than in case of Flasch. We don't the actual ratio so we can't comment on the athletic performance of the two.
B) When compared, the average of the maximum pace ratios of Leswift and Flasch exceeded the average of the control group. -Correct. Since the two guyz are winners, so their average should be greater than the average of the remaining cyclists.
C) Statistically, Flasch has a lower chance of winning a cycling race against Leswift. -Same error as in A
D) Leswift's regular state protein content to body temperature ratio is higher than that of the cyclists in the control group. -We don't know anything about "regular" state of the cyclists.
E) To reach maximum pace, the control group's ratio increased by a smaller amount than that of Flasch and Leswift. -Out of scope.
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Re: Jacques Leswift and Andy Flasch are the top two cyclists in the world   [#permalink] 29 Oct 2017, 12:34
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