Jordan took a bus from home to market, that travels at 20 kmph. While walking back at 2 kmph,
halfway through, he suddenly realized he was getting late and he cycled back the remaining distance in 10 kmph. Find the average speed.  Pick
A) 2.9 kmph B) 4.3 kmph C) 5.1 kmph D) 1.8 kmph E) none of these
Let the distance be 2x(one way)   Time taken by bus = 2x/20, by walking =x/2, by cycling = x/10 hours   :. 2.9 kmphverage speed = Total Distance/Total time   = 2x / x/10 + x/2 + x/10   = 2 *60 / 6+30+6   = 2.9   2.9 kmphNSWER:2.9 kmph
<result>A</result>
Jordan took a bus from home to market, that travels at 20 kmph. While walking back at 2 kmph,
halfway through, he suddenly realized he was getting late and he cycled back the remaining distance in 10 kmph. Find the average speed.