Two trains are coming from opposite directions with speed of 75 km/hr…

Question

Two trains are coming from opposite directions with speed of 75 km/hr and 100 km/hr on to parallel tracks. At some moment the distance between them is 100km. After T hours, distance between them is again 100 km. T is eq…

Accepted Answer

Option B. 11/7 hr. Answer & Solution Answer: Option B Solution: & Relative speed & = (75 + 100)km/hr & = 175 km/hr & Time taken to cover 175 km & at relative speed = 1 hr & T = Time taken to cover 200 km & = ( 1175 × 200 )\, hr & = 8/7\, hr & = 11/7\, hr

Two trains are coming from opposite directions with speed of 75 km/hr and 100 km/hr on to parallel tracks. At some moment the distance between them is 100km. After T hours, distance between them is again 100 km. T is equal to?

Solution