Suppose a book has 100 names listed in each column, with 5 columns per page. The book has 200 pages. How many books are needed to list all the people in a population of 200 million?

2,000

Step-by-step explanation:

We know that 100 × 5 = 500, so one page has 500 names on it, we can now then infer that each book has 100,000 names on it because we do 500 × 200.

So knowing that there is 100,000 names per book we now then do 100,000 × 2,000 which equals 200,000,000, so we need to do 2,000 books to store the names of 200 million people. Hope this helps.

true? is that what you're asking or do you mean something else?

addition

step-by-step explanation: