Question 833422
Let {{{ a }}} = the amount he started with
He gave {{{ (2/5)*a }}} to his wife, so he had
{{{ (3/5)*a }}} left
He spent 1/2 so he had {{{ (1/2)*(3/5)*a }}} left
{{{ (3/10)*a = 300 }}}
{{{ 3a = 3000 }}}
{{{ a = 1000 }}}
He had $1,000 at first
check:
He gave 2/5 to his wife, so he had
$600 left
He spent $300, so he had $300 left
OK