3.2 Two workers together produced 72 parts per shift. After the first worker increased their labor productivity by $15 \%$, and the second by $25 \%$, together they started producing 86 parts per shift. How many parts does each worker produce per shift after the increase in labor productivity?
3.2 Initially, workers produced $x$ and $72-x$ parts per shift, and then $1.15 x$ and $1.25(72-x)$ parts. According to the condition, $1.15 x + 90 - 1.25 x = 86 ; 0.1 x = 4 ; x = 40 ; 1.15 \cdot 40 = 46$.

Answer: 46 and 40 parts.