Question 995961
{{{ 92 <= ( 95 + 98 + 92 + x ) / 4 <= 100 }}}
Multiply by {{{ 4 }}}
{{{ 368 <= 95 + 98 + 92 + x <= 400 }}}
{{{ 368 <= 285 + x <= 400 }}}
Subtract {{{ 285 }}}
{{{ 83 <= x <= 115 }}}
Since it's impossible to score {{{ 115 }}}, I would say:
{{{ 83 <= x <= 100 }}}
Note that it's not possible to average {{{ 100 }}}
with the given scores on 3 tests