Hello candidate, 

There are various links where you might get the question papers with their answer key downloaded in pdf form. 

http://cet.kar.nic.in/qepaper.htm

https://admission.aglasem.com/kcet-question-papers-with-answers/#referrer=https://www.google.com

https://collegedunia.com/exams/kcet/practice-papers

https://www.embibe.com/exams/mh-cet-previous-year-papers/amp/#referrer=https%3A%2F%2Fwww.google.com&amp_tf=From%20%251%24s

Here are few of them. 

You might find more and more on Google. 

Hope it helps. 

Good luck!