In order to attend the maximum questions in KCET speed is the key. 

To work on your speed it is very important that your concepts should be clear. To work on your concepts you can take help of your text books or NCERT. Make sure you solve all the problems which is provided in the book.

To understand the exam pattern and to know the level of the exam you must solve previous year questions papers to get familiar with the exam. 

To increase your speed you need to solve as many as MCQs for your practice and complete mock test series. 

You can also solve timing tests to increase your speed. 

It is very important that you analyse your mock test to know your strength and weakness. So, that you can work upon them. Always try to learn from your mistakes and try not to repeat them.

It is advisable to solve questions which you find easy first then you can move to the other questions it will help to solve maximum questions. 

All the Best!!