Question

Clara got 11 books at the book fair. That's 5% of all the books at the Book-fair. How many books are at the Book-fair in total?

Answer 1

220

Explanation:

1) 11 (books) - 5%

x (total of books) - 100%

2) Cross multiplicate (100% is one and 5% is 0.05)

3) 11 - 0.05x

4) Switch x - [0.05x - 11]

5) Divide - [x = 220]

Answer 2

there are 220 total books at the book fair