Question 1143985
Let {{{ x }}} = number of coins they each give James
{{{ 50 - x <= 4*( 20 - x ) }}}
{{{ 50 - x <= 80 - 4x }}}
{{{ 50 + 3x <= 80 }}}
{{{ 3x <= 30 }}}
{{{ x <= 10 }}}
The range of coins is between 1 and 10 inclusive.
( can't be zero coins since they gave James some coins )