Poll Asked: December 24, 20202020-12-24T11:30:52+05:30 2020-12-24T11:30:52+05:30Category: Quantitative Aptitude - Arithmetic Ability Two buses are moving towards each other with speed of 20 km/hr and 34 km/hr respectively. What will be the distance (in metres) between the two buses one second before they collide? Anonymous Poll ResultsPlease login to vote and see the results. Select one answer 15 metres 18 metres 21 metres 25 metres Share Facebook 1 Answer Voted Recent Expert Verified CrazyMan Guru 2020-12-24T11:50:23+05:30Added an answer on December 24, 2020 at 11:50 am The distance between the two buses one second before they collide is 15 meters. Explanation: Speed of first bus is 20 km/hr = 20 x 1000m/3600sec = 20 x 5/18 m/s = 100/18 m/s Speed of the second bus is 34 km/hr = 34 x 5/18 m/s = 170/18 m/s Now, we know that the two buses are approaching towards each other. So, we need to add their speeds. ==> (100/18 + 170/18)m/sec ==> 270/18 m/sec ==> 15 m/sec Now, distance = speed x time we need to find the distance between each other before 1 second. So, d = 15 x 1 = 15 metres. 1 Share Share Share on Facebook Share on Twitter Share on WhatsApp Share on LinkedIn Answer this question & earn 50 pointsSign In with FacebookSign In with GoogleSign In with Twitteror use Username or email* Password* Captcha* Remember Me! Forgot Password?

The distance between the two buses one second before they collide is

15 meters.## Explanation:

Speed of first bus is 20 km/hr = 20 x 1000m/3600sec = 20 x 5/18 m/s = 100/18 m/s

Speed of the second bus is 34 km/hr = 34 x 5/18 m/s = 170/18 m/s

Now, we know that the two buses are approaching towards each other. So, we need to add their speeds.

==> (100/18 + 170/18)m/sec

==> 270/18 m/sec

==> 15 m/sec

Now, distance = speed x time

we need to find the distance between each other before 1 second. So, d = 15 x 1 = 15 metres.