A 120 m long train moving with constant speed of 90 km/h crosses a tunnel in 14 second. What is the length of the tunnel?
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Answered by
2
Hallo!
Let the length of tunnel is x meter.
Distance =120m+x
Time = 14sec.
Speed =90km/hr
=90x5/18
=25m/s
Distance = speed x time
120 + x = 25 x 14
x = 350 - 120
x = 230
Hence,the length of tunnel is 230 metre.
nikita262738:
no the answer is 230
how?
90 (5/18)
by mistake
ok
Answered by
2
let the length(tunnel) be - x
distance=120m+x
time=14s
speed=90km/hr
=90×5/18
=25
distance=speed×time
120+x = 25×14
120+x =350
x = 350-120
x= 230m
hence,the length of tunnel is 230m.
your answer is correct
ty for marking my answer as brainliest
your welcome
shivangi r u going out of town in may
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