Question 1020008
Average speed  = [ total distance ] / [ total time ]
Total distance = {{{ 5.5 }}} km
--------------------------
For the 2nd part of the trip:
{{{ 5.5 / 5 = 1.1 }}} hrs
--------------------
Convert min to hrs
{{{ 20/60 = 1/3 }}}
Total time = {{{ 1/3 + 1 + 1/10 }}}
Total time = {{{ 10/30 + 30/30 + 3/30 }}}
Total time = {{{ 43/30 }}}
--------------------------------
{{{ 5.5 / (( 43/30 )) = ( 30/43 )*5.5 }}}
{{{ ( 30/43 )*5.5 = 3.837 }}}
average speed = 3.837  km/hr