how to manage time for running and backward 45 chapters of combine bio physics and chemistry while I get maximum 9 hrs

Hi,

The chapter you can cover and time required for it depends on how fast you can grasp a concept. There are some units which can be covered in 3-4 hours and some require 2-3 days. The time required depends on how lengthy the chapter is ,how much difficult it is. While preparing time table divide the time as such that all the three subjects physics , chemistry and biology are covered in each day.  You can either give equal time to each subject and if before the given time you have covered the topic you can spend this on which you require more effort.

There is a no time table which can be called a perfect time table. You should manage your time according to your needs and adjustment so that you can benefit maximum from the less.

Hope you find this helpful.