Question

ट्रेन 700 मीटर लोंग इज रनिंग अट ए स्पीड ऑफ 72 किलोमीटर पर आर एस क्रॉस इस टनल इन 1 मिनट द लेंथ ऑफ द टनल एस​

Answer 1

Answer:

length of train = 700m

length of tunnel = X (let)

Time to taken cross the tunnel = 1 minute = 60 second

speed = 72kmph = (72*5)/18 = 20 m second

To cross the tunnel train needs to travel = length of train + length of tunnel = 700 + X

Now,

S*T = D

20*60 = 700 + X

X = 1200 - 700 = 500

length of tunnel = 500m

Step-by-step explanation:

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