desaichinmay22 wrote:
In a 200 meter race on a straight track, A was the winner and C finished second. Who among the remaining two contestants, B and D, finished third
(1) A beat B by 14 seconds. C beat D by 12 meters
(2) A finished the race in 25 seconds. D finished 20 meters behind A.
Not able to understand OA. Please help.
Now in this race A and C were first and second respectively
(2) A finished the race in 25 seconds. D finished 20 meters behind A.
This one was easy to prove insufficient. Now from this statement you can get the rate of A as 8 m /sec
But position of D can be before B or after B.
(1) A beat B by 14 seconds. C beat D by 12 meters
Now from this statement i dont know the difference between their speeds, what if B could have covered distance less than D, less than 12
Lets Combine both the statements,
speed of A = 8 m/sec
B will be at 88 m when A would have completed the race
C came second and Beat D by 12 meters and D was 20 meters behind A
IMO D came third then.
Answer C
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