Two buses start at same time from Chennai and Bangalore which are 250km apart If the two buses trave...........

Quantitative Aptitude ( CCS) Time & distance

Two buses start at same time from Chennai and Bangalore, which are 250km apart. If the two buses travel towards each other, they meet after 1hr and if they travel in same direction they meet after 5hrs. What is the speed of the bus starts from Chennai if it is know that the one which started from Chennai has more speed than the other one?

150km/hr

100km/hr

45km/hr

80km/hr

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Explanation:

Solution:
S=D/T
Here we have two speeds. We get 2 equations as.
250/1hr = C+B—-1 (Travelling in opposite direction, speed must be added ie C+B)
250/5hr = C-B—-2 (Travelling in same direction, speed to be subtracted. ie C-B)
solving 2 eqn C=150km/hr.