Question 812292
First, convert minutes to seconds
{{{ 26 }}} min x {{{ 60/1 }}} sec/min = {{{ 1560 }}}  sec
{{{ 1560 + 22.75 = 1582.75 }}}
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Do this conversion:
( m / sec ) x ( km / m ) x ( sec / min ) x ( min / hr ) = ( km / hr )
{{{ ( 10000 / 1582.75 )*( 1 / 1000 )*( 60/1 )*( 60/1 ) }}}
{{{ 10 / 1582.75 )*3600 }}}
{{{ 36000 / 1582.75 = 22.745 }}}
Average speed
 is 22.745 km/hr
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check:
{{{ 10 / ( 26/60 ) = 600/26 }}}
{{{ 23.077 }}}
( just a rough check )