AVERAGE PRODUCTION of Car P \[=\frac{Sum\text{ }of\text{ }production\text{ }of\text{ }Car\text{ }P\text{ }in\text{ }each\text{ }year}{Total\text{ }number\text{ }of\text{ }years}\] \[=\frac{76+82+65+70+85+80}{6}=\frac{458}{6}=76.33\]Average production of Car Q \[=\frac{59+62+47+54+57+68}{6}=\frac{347}{6}=57.83\]Average production of Car R \[=\frac{28+36+42+31+49+38}{6}=\frac{224}{6}=37.33\]Clearly, average production of Car P is greater than Car Q and Car R. Hence, average production of Car P is maximum.