1.

ek rail45km/h ki gatti see ek khambhe ko par Karne me kitne time me paar karagi yadi 1200miter lami rail hai to time =?

Answer»

Speed = distance/time

distance = 1200 m = 1200/1000 = 1.2km

time = 1.2/45time = 0.0267 hrs



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