Question 899933
Let the one-way distance  = {{{ d }}}
From the return trip:
{{{ d = 455*8 }}}
{{{ d = 3640 }}}
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Let {{{ t }}} = the time in hrs to go to Jakarta
The trip going:
{{{ 3640  = 364t }}}
{{{ t = 10 }}}
{{{ 10 + 8 = 18 }}}
The trip took 18 hrs