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Bunuel
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Among the five cyclists identified in the figure as A, B, C, D, and E, 15 Dec 2020, 07:30
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70% (01:20) correct 30% (01:03) wrong based on 92 sessions

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The following figure, which compares the race times of ten different cyclists, all of whom competed in the same two races (race 1 and race 2).

Among the five cyclists identified in the figure as A, B, C, D, and E, which had the fastest combined (total) race time for races 1 and 2?

(A) A
(B) B
(C) C
(D) D
(E) E


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A
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Among the five cyclists identified in the figure as A, B, C, D, and E, 21 Dec 2020, 20:38
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The below image will help to understand the graph in a xy-plane.
\(A = 1.8 (Race_1)+2.8 (Race_2) \approx 4.6\)
\(E = 4 (Race_1)+2 (Race_2) = 6\)
Ans A
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randomavoidplease
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Among the five cyclists identified in the figure as A, B, C, D, and E, 25 Dec 2020, 23:09
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meanup
The below image will help to understand the graph in a xy-plane.
\(A = 1.8 (Race_1)+2.8 (Race_2) \approx 4.6\)
\(E = 4 (Race_1)+2 (Race_2) = 6\)
Ans A
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Why not C then? Isnt that the highest total?
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Minibot
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Among the five cyclists identified in the figure as A, B, C, D, and E, 25 Dec 2020, 23:17
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randomavoidplease
meanup
The below image will help to understand the graph in a xy-plane.
\(A = 1.8 (Race_1)+2.8 (Race_2) \approx 4.6\)
\(E = 4 (Race_1)+2 (Race_2) = 6\)
Ans A

Why not C then? Isnt that the highest total?
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You are correct, C does have the highest total. However we are trying to find the fastest cyclists, meaning the one with the lowest time.

Hopefully, this clears it up!

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Among the five cyclists identified in the figure as A, B, C, D, and E, 25 Dec 2020, 23:19
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Minibot
randomavoidplease
meanup
The below image will help to understand the graph in a xy-plane.
\(A = 1.8 (Race_1)+2.8 (Race_2) \approx 4.6\)
\(E = 4 (Race_1)+2 (Race_2) = 6\)
Ans A

Why not C then? Isnt that the highest total?

You are correct, C does have the highest total. However we are trying to find the fastest cyclists, meaning the one with the lowest time.

Hopefully, this clears it up!

Posted from my mobile device
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Ah, inferred wrong. Got it thanks/
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Among the five cyclists identified in the figure as A, B, C, D, and E, 04 Jan 2021, 19:38
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i think for this type of question, an efficient approach would be to think from a Matrix (Quadrants) perspective. Since we are asked for the combined minimum time of the cyclist, cyclist whose times falls in 3 quadrant will be the minumim.

for instance, Quadrant 1 (H, H); Quadrant II, (H, L), Quadrant III (L, L), Quadrant IV (L, H). L and H are low and High respectively.

As the combined times of cyclist A lies on 3 Quardrant, he is the fastest.
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