Question 992318
Let {{{ x }}} = amount of your co-worker's check
{{{ x - .25x = .75x }}} = amount of your check
--------------
{{{ x + .75x = 820 }}}
{{{ 1.75x = 820 }}}
{{{ x = 820/1.75 }}}
{{{ x = 468.57 }}}
and
{{{ .75x = .75*468.57 }}}
{{{ .75x = 351.43 }}}
-----------------
co-worker's check: $468.57
Your check: $351.43
-------------------
Check:
{{{ 468.57 + 351.43 = 820 }}}
{{{ 820 = 820 }}}
OK