Question

ek railgadi 60 km/hr ki chal se chalkar 170 meter lambi dushri gadi ko jo viprit disa mein 80 km/hr se chal rahi hai 7.2 second mein par kar jati hai toh peheli rail gadi ki lambai kya hai

Answer 1

Answer:

70 ans

Step-by-step explanation:

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