Question 901477
You can set up a ratio:
( distance1 walked ) / ( time to walk it ) = 
( distance2 walked ) / ( time to walk it )
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Let {{{ t }}} = time is seconds
{{{ 10 / 6 = 500 / t }}}
Multiply both sides by {{{ 6t }}}
{{{ 10t = 3000 }}}
{{{ t = 300 }}}
It would take 300 seconds to walk 500 meters
You can convert seconds to minutes:
{{{ 300 / 60 = 5 }}}
It would take 5 minutes to walk 500 meters