Question 1143984
Let {{{ x }}} = number of radios
Let {{{ y }}} = number of TVs
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(1) {{{ x + y <= 285 }}}
{{{ x = (1/2)*y }}}
(2) {{{ y = 2x }}}
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Plug (2) into (1)
(1) {{{ x + 2x <= 285 }}}
(1) {{{ 3x <= 285 }}}
(1) {{{ x <= 95 }}}
The range of radios is between 1 and 95 inclusive
( assuming there is at least 1 radio, and also,
there still must be 2 TVs for each radio )
For example, if there are 85 radios, there must be
170 TVs