Question

anuj takes 12 minutes to go to market and 16 minutes to come back. IF market is 4.5 km away, find his average speed

Answer 1

AVG speed = total distance / total time
avg speed =
$\frac{4.5 + 4.5}{12 + 16}$
this is in km/minute.
9000/(28 * 60) is in meters/second

Answer 2

19.28571427kmph
average speed=total distance travelled /total
time taken
total distance =4.5+4.5=9km
total time=12+16=28
=28/60
=0.466666667
then
average speed=9/0.466666667
=19.28571427km/h