Question 1139755
It sounds like they are including the effect of
the wind to arrive at their speeds.
Let {{{ d }}} = the one-way distance
Let {{{ t }}} = time in hrs for 1st leg
{{{ 6 - t }}} = time in hrs for 2nd leg
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(1) {{{ d = 235t }}}
(2) {{{ d = 190*( 6 - t ) }}}
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{{{ 235t = 190*( 6 - t ) }}}
{{{ 235t = 1140 - 190t }}}
{{{ 425t = 1140 }}}
{{{ t = 2.6824 }}}
and
{{{ d = 235*2.6824 }}}
{{{ d = 630.353 }}} mi
For the round trip:
{{{ 2d = 1260.706 }}} mi
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check:
(2) {{{ d = 190*( 6 - t ) }}}
(2) {{{ d = 190*( 6 - 2.6824 ) }}}
(2) {{{ d = 190*3.3176 }}}
(2) {{{ d = 630.344 }}} mi
error due to rounding off, I think
check the math