Explanation:
The width of both the computer and real version are given.
In computer, the width of the book is 2.5 inches
Really, the width of the book is 7.5 inches.
To find the scale, we simply find how many times one number is of the other.
Just see!
if we multiply 2.5 by 3, we get 7.5 inches.
So,
Real life book is 3 times than the computer version.
Or, we can say
The computer version is 1/3rd of the real version.
The scale is 1:3
