<span>
Краткое условие:За 1 час:
<span><span>1-ый рабочий - х деталей
</span><span>2-ой рабочий - <span>у деталей.
Решение:</span></span></span></span><span><span><span><span>
x</span></span></span></span>≠0 <span><span><span><span> y</span></span></span></span>≠0;<span><span><span><span>
</span></span></span></span>
<span><span><span><span>
</span></span></span></span>
<span><span><span><span>
</span></span></span></span>
<span><span><span><span>
</span></span></span></span>
<span><span><span><span>
</span></span></span></span>
<span><span><span><span>
Ответ: 9 ч</span></span></span></span><span><span><span><span>
</span></span></span></span>