A train having a length of 240 m passes a post in 24 seconds How long will it take to

this is not a elitmus level question
8 years agoHelpfull: Yes(4) No(0)
89 secs..i wish all other questions would have come of that level.:( ;)
8 years agoHelpfull: Yes(1) No(0)
89 sec is the right answer.
8 years agoHelpfull: Yes(0) No(0)
Ans : 3) 89
8 years agoHelpfull: Yes(0) No(0)
speed of train = 240/24 =10 m/s
time taken to pass platform = (length of train + length of platform ) / speed of train
=( 240 + 650 ) /10
=89 /10 =89 sec ------(c)
8 years agoHelpfull: Yes(0) No(0)
Speed = Distance/Time = 240/24 = 10.
While Passing from Platform , 650m long
Distance = 240 + 650
time= distance/speed = 890/10 = 89
8 years agoHelpfull: Yes(0) No(0)
speed=240/24=10
650+240=890
t=890/10
t=89
8 years agoHelpfull: Yes(0) No(0)
24=240/u
u=10m/s

time=240+650/10
time=890/10
time=89sec
8 years agoHelpfull: Yes(0) No(0)
3) 89 sec
first find speed=distance/time
speed=240/24
speed=10m/s
after that get time for passing platform =(240+650)/10
ans- 89 sec
8 years agoHelpfull: Yes(0) No(0)
total length=650+240=890
speed=240/24=10m/s

time=890/10=89 sec
8 years agoHelpfull: Yes(0) No(0)
89 secs

65 secs to reach end + 24 secs to cross = 89 secs
4 years agoHelpfull: Yes(0) No(0)
Speed of train = 240/24 = 10m/s

Time taken by train to cross platform = (650+240)/10 = 89sec

So correct option is c.
3 years agoHelpfull: Yes(0) No(0)

A train having a length of 240 m passes a post in 24 seconds. How long will it take to pass a platform having a length of 650 m?

Options
1) 120 sec
2) 99 sec
3) 89 sec
4) 80 sec