Home » Aptitude » Time and Distance

You drive to the store at 20 kmph and return by the same route at 30 kmph. Discounting the time spent at the store, what was your average speed ?

Correct Answer: 24 kmph

Explanation:

Average speed=total distance/total time
Let distance to store be  K
then, total time =(K/20)+(K/30)=K/12
and, total time =(2K)
so average speed= 2K / (K/12) = 24kmph.


← Previous Question Next Question→

More Questions from Time and Distance

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion