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25 Mar 2020, 04:21
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
67% (02:05) correct
33%
(02:30)
wrong
based on 124
sessions
History
Date
Time
Result
Not Attempted Yet
A 90-meter long train, travelling at the rate of 40 kmph is moving towards a man running at the rate of 5 kmph towards the train. If the distance between the train and the man is 10 meters, how long it will take the train to pass the man?
A. 2 sec
B. 7.2 sec
C. 8 sec
D. 10 sec
E. 12 sec
A. 2 sec
B. 7.2 sec
C. 8 sec
D. 10 sec
E. 12 sec
yashikaaggarwal
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25 Mar 2020, 05:13
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Relative Speed formula to be used here
Time=length of train+length of the track before reaching mam/speed of train+speed of man
T=(90+10)/(40+5)*5/18
{Km/h*5/18=m/s}
T=100/12.5
T=8
OA is C
Posted from my mobile device
Time=length of train+length of the track before reaching mam/speed of train+speed of man
T=(90+10)/(40+5)*5/18
{Km/h*5/18=m/s}
T=100/12.5
T=8
OA is C
Posted from my mobile device
25 Mar 2020, 07:18
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Bunuel
A 90-meter long train, travelling at the rate of 40 kmph is moving towards a man running at the rate of 5 kmph. If the distance between the train and the man is 10 meters, how long it will take the train to pass the man?
A. 2 sec
B. 7.2 sec
C. 8 sec
D. 10 sec
E. 12 sec
A. 2 sec
B. 7.2 sec
C. 8 sec
D. 10 sec
E. 12 sec
Hi Bunuel
It is not clear whether man is running in the direction of the train or in the direction opposite to the train. Please correct
