Two trains with a speed of 80 km/h and 120 km/h, respectively, are 500 km apart and face each other. Find the distance between them 10 minutes before crossing.
Answer & explanation
Correct answer: option 2
Train 1 speed (S1) = 80 km/h,
Train 2 speed (S2) = 120 km/h,
Distance = 500 km.
Formula to be used
Distance = speed x time.
Calculations
Relative speed = 80 + 120 = 200 km/h .. (as they face each other)
Distance in 10 mins, i.e; \(\frac{10}{60}\)
Distance = speed x time
⇒ 200 x \(\frac{10}{60}\) = 33.33 Km