An ordinary bus left the station going towards west at an average speed of 100kph. An hour later, an aircon bus left the same station going towards east at an average of 150 kph. At what time will they be 500km apart from each other.?

Question

alekos · Answer

That would be after 2hrs and 36minutes

anonymous · Answer

how did u get it @alekos ?

alekos · Answer

after the 1st hour the relative speed of bus A to bus B is 250 kph, so it would take another 1hr & 36 min to get to a 400km distance.  (400/250)