\[x - начальная\ выработка\ \]
\[продукции.\]
\[1)\ После\ первого\ года:\]
\[x_{1} = x \bullet (100 + p)\% =\]
\[= x \bullet \frac{100 + p}{100} = \frac{x(100 + p)}{100}.\]
\[2)\ После\ второго\ года:\]
\[x_{2} = x_{1} \bullet (100 + p + 10)\% =\]
\[= \frac{x(100 + p)}{100} \bullet \frac{110 + p}{100}.\]
\[3)\ Увеличение\ выработки:\]
\[x \bullet (100 + 48,59)\% = x_{2}\]
\[\frac{148,59x}{100} = \frac{x(100 + p)}{100} \bullet \frac{110 + p}{100}\]
\[148,59 \bullet 100 = (100 + p)(110 + p)\]
\[14\ 859 = 11\ 000 + 100p + 110p + p^{2}\]
\[p^{2} + 210p - 3859 = 0\]
\[D = 44\ 100 + 15\ 436 = 59\ 536\]
\[p_{1} = \frac{- 210 - 244}{2} = - 227;\]
\[p_{2} = \frac{- 210 + 244}{2} = 17.\]
\[Ответ:\ \ на\ 17\%.\]