In a bag, there are 5 green books, 5 red books and 5 blue books. In how many ways can we fill 3 vacant places with these 15 books?

What is a good book or resource for studying the history of special relativity?

How do you keep a book’s cover from suspending?

Which are the best detailed books for learning ethical hacking from scratch?

What are the best metapapers about entrepeneurship development?

Which are the best books to learn Fortran?

Which are the best reference books for IIT preparation in class 11?

To which book should I refer to crack NEET?

Which book is good for TV & radar engineering?

Which books are the best for preparation for the Bank of India credit officer exam 2017?

How should I prepare for law and audits? Should I learn exactly the same language in books, or else can I use my own?

Which is the best book on energetics (physics)?

Is there any book about the relationship between music and math?

Is it possible to learn finance by oneself by reading books, than going to a B-School?

What kind of book or series could help stigma associated with suicide?

Which books can I download for free in order to prepare for the general awareness part of the SSC CGL?

What are some of the best chemistry books that I should refer for my IIT JEE preparation for all the three sections (physical, organic and inorganic)?

What are the best books for learning about finance?

Which books are best to prepare for the 2017 Bank of India credit officer exam?

Which books should a person have to read to get to the same level as Elon Musk or Bill Gates?