do station A aur B 150 kilometre Doori par sthit hai ek hi Samay par 2 trainer kramasha A se B ki aur tatha B Se A ki Aur Chalti Hai chalne ke do ghante ke bad donon train Ek dusre se milti hai yadi A Se B ki aur chalne wali train dusri ke Apeksha 5 kilometre per hour Dhimi Chalti Hai . To dono traino Ki Chaal gyat kare
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simple hain Lekin Muje nahi araha . sorry
nikhil9999:
hi
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