Ques:- A train of length 150 m takes 40.5 seconds to cross a tunnel of length of 300 m. The speed of the train (in km/hr) is
A. 13.33
B. 26.67
C. 38.32
D. 40
A train of length 150 m takes 40.5 seconds to cross a tunnel of length of 300 m. The speed of the train (in km/hr) is
speed=distance/time=(300+150)/40.5=11.1111m/s=(11.111*(18/5))=40km/hrs
How
40 kmph
40
D. 40
26.667
13.33
total distance pased by train is 150m
because, = tunnel length-train length
=300-150
=150m
d=0.15km t=0.01125
a=d/t
=13.33
D
40
26.6
length of train + tunnel length = total distance
300+150=450
Speed =distance / time
= 450/40.5
It’s was in meter/ second form. We need to convert it into km/hr. So we multiple with 3.6(i.e 3600/1000)
=450/40.5*3.6
=40 km/hr
40
total distance = 150 + 300 = 450m
Time = 40.5s
Distance in km = 450/1000 = 0.45km
Time in hr = 40.5/3600 = 0.01125hr
Speed = distance/time => 0.45/0.01125 => 40km/hr
B
40
Ans D. 40 Km/Hour
The length L of the train is 150 Mts, distance to cover D is 300 Mts length of tunnel in time T 40.5 seconds
(L + D)/T = (150+300)/40.5 = 450/40.5 = 11.11 Mts/Sec
Converting the same to Kms/Hour
11.11 * 3600 /1000 = 40 KM/Hour
40km/hr
40km/ per hr
40
40km/h
D. 40
(150+300)m/40.5 s = 11.1 m/s
11.1 * 3.6 = 40
40
40km/hr
Total Distance Covered By the train = 300 + 150 = 450
Speed of trin in Km = (450*3600)/(40.5*1000)=40 km/h
Since the total train length passed the tunnel so the distance would be the length of train added to the tunnel legth
D=150+300=450 mt.
speed = distance/time
speed = 450/(40.5/3600)
speed =40,000 mt/sec.
answer is D
Since the total train length passed the tunnel so the distance would be the length of train added to the tunnel legth
D=150+300=450 mt.
speed = distance/time
speed = 450/(40.5/3600)
speed =40,000 mt/sec
Since the total train length passed the tunnel so the distance would be the length of train added to the tunnel legth
D=150+300=450 mt.
speed = distance/time
speed = 450/(40.5/3600)
speed =40,000 mt/sec