Question 1027067
You're rate of working is:
[ 1 doghouse built ] / [ 6 hrs ]
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It takes 10 times as long to build 10 doghouses
[ number to be built ] / [ rate of building them ] = [ time to build them ]
{{{ 10 / (( 1/6 )) = 60 }}}
{{{ 60/8 = 7.5 }}}
It will take 7 and 1/2 hrs to build 10 doghouses