Question 833258
{{{ d = r*t }}}
{{{ t = d/r }}}
{{{ t[1] = 130/65 }}}
{{{ t[1] = 2 }}} hrs
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{{{ t[2] = 130/76 }}}
{{{ t[2] = 1 + 54/76 }}}
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{{{ t[1] - t[2] = 2 - 1 - 54/76 }}}
{{{ t[1] - t[2] = 22/76 }}}
{{{ t[1] - t[2] = 11/38 }}} hrs
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To convert to minutes:
( hrs ) x ( minutes / hr ) = minutes
{{{ (11/38 )*( 60/1 ) = ( 11*30 )/19 }}}
{{{ 330/19 = 17.37 }}}
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{{{ .37*60 = 22 }}}
He saves 17 min and 22 sec