hey bro u just have 2 take book and study give 5hrs for physics , (3 & 3)hrs for chem and maths enough 2 get around 170 .ya physics requires little time its more of concept than cramping chem u have 2 cramp for mhcet if have time ready halliday resnick ur theroy will be crystal clear coz in mhcet 50 question r asked in that 35 question r theroy based and 15 of them r only problems but if u r giving aieee and jee then solve problems reading is waste