Hi, I've bought this just because i was too anxious about my career after 12th.But fortunately i found my interested course without JEE.So I've never ever used these books and i hope this will be helpful to someone.As we know books for entrance exam are very costly these days.When i bought both of these together costed ₹720(₹265+₹495)....i would like to give this in much cheaper rate ...just ₹500 for both.