Question

If the book is 245 pages, how many minutes will it take him to finish? ​

Answer 1

It depends on how many minutes he takes to read one page

Answer 2

There is no way to answer that.

Explanation:

You don't know at what pace he is reading so until you know that you won't be able to tell how long it will take him. I hope this let's you know what you need to find. Good luck! :D