Mary can read 1/3 of a book in 48 minutes at this rate how much will it take her to read the entire book
\

It will take her 144 minutes in total because it takes her 48 minutes to read 1/3 of a book and 3 parts make 1/3 so 48 multiplied by 48 is 144

All you have to do is multiply 48 by 3 because if she read 1/3 of the book in 48 minutes and their asking how long it will take her to read the entire book you have to multiply and you would get 144 and that is also 2 hours and 24 minutes