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Distance between two poles is 50 meters. A train goes by 48 at a speed of kmph. In one minute how many poles will be crossed by the train ?
Read Solution (Total 8)
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- If speed is to be read as 48 km/hr
then speed in mtrs/sec = 48*5/18 = 40/3 mtrs/sec
Distance travelled in 60 secs= 60*40/3 = 800 mtrs.
No of gaps ( between poles) covered by train in 1 min = 800/50 =16
no of poles covered in 1 min = 16+1=17 - 13 years agoHelpfull: Yes(65) No(6)
- 60min-----------48km
hence 1min-------------(48/60)km=800m
50m-------------crossing 1 pole
hence 800m------------crossing(800/50)poles=16... - 10 years agoHelpfull: Yes(7) No(7)
- 48 Km/ hr = 48/60 Km/min => 0.8 Km/min = 0.8*1000 m/min
= 800 m/min
as each pole is at 50 meter
= 800/50 = 16 poles in one minute - 13 years agoHelpfull: Yes(6) No(11)
- 17 pole
- 13 years agoHelpfull: Yes(4) No(3)
- If speed is to be read as 48 km/hr
then speed in mtrs/sec = 48*5/18 = 40/3 mtrs/sec
Distance travelled in 60 secs= 60*40/3 = 800 mtrs.
No of gaps ( between poles) covered by train in 1 min = 800/50 =16
no of poles covered in 1 min = 16+1=17 - 10 years agoHelpfull: Yes(2) No(0)
- 0.8sec poles will be crossed by the train
- 13 years agoHelpfull: Yes(0) No(12)
- 17 poles
1 is starting also - 8 years agoHelpfull: Yes(0) No(0)
- if s=d/t and the distance is d=st
so d=1200 m
1200/50 ans 24 - 8 years agoHelpfull: Yes(0) No(1)
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