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Bunuel
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Sprinter A and Sprinter B are running the 100 yard dash in opposite di 11 Oct 2019, 02:00
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C
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Difficulty:

35% (medium)

Question Stats:

67% (01:24) correct 33% (01:12) wrong based on 81 sessions

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Sprinter A and Sprinter B are running the 100 yard dash in opposite directions. Sprinter A is starting at the finish line for Sprinter B and Sprinter B is starting at the finish line for Sprinter A. Who is the faster sprinter, assuming that they run a constant speed throughout the entire 100 yards?

(1) Sprinter A averages 3 feet per step and Sprinter B average 5/2 feet per step.
(2) Sprinter B takes 4 steps per second and Sprinter A takes 3 steps per second.
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C
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Sprinter A and Sprinter B are running the 100 yard dash in opposite di 12 Oct 2019, 00:45
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Bunuel
Sprinter A and Sprinter B are running the 100 yard dash in opposite directions. Sprinter A is starting at the finish line for Sprinter B and Sprinter B is starting at the finish line for Sprinter A. Who is the faster sprinter, assuming that they run a constant speed throughout the entire 100 yards?

(1) Sprinter A averages 3 feet per step and Sprinter B average 5/2 feet per step.
(2) Sprinter B takes 4 steps per second and Sprinter A takes 3 steps per second.

Fastest Sprinter will cover more distance in a fixed time.

(1) Sprinter A averages 3 feet per step and Sprinter B average 5/2 feet per step.
--> Does not talk about the time taken for each step. So not possible to compare speed or distance --> Insufficient
(2) Sprinter B takes 4 steps per second and Sprinter A takes 3 steps per second.
--> Does not talk about the length of each step. So not possible to compare distance covered per second --> Insufficient

Combining (1) & (2),
Speed of Sprinter A = 3*3 = 9 feet per second
Speed of Sprinter B = 5/2*4 = 10 feet per second
--> Speed of B > Speed of A --> Sufficient

IMO Option C
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Bunuel
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