Question

At the bookstore, 40 copies of a popular paperback book fit perfectly on a 5-foot shelf. How many copies of this book would fit perfectly on an 8-foot shelf?

Answer 1

40 : 5
: 8

8÷5×40 = 64

Answer 2

The number of copies of the popular paperback book fit in 8 foot shelf are 64 .

Explanation:

As given

At the bookstore, 40 copies of a popular paperback book fit perfectly on a 5-foot shelf.

i.e

40 copies = 5 foot self

Now calculate number of paperback copies in 1 foot self.

`Number\ of\ copies\ of\ popular\ paperback\ book\ fit\ in\ 1\ foot\ shelf = (40)/(5)`

`Number\ of\ copies\ of\ popular\ paperback\ book\ fit\ in\ 8\ foot\ shelf = (40* 8)/(5)`

`Number\ of\ copies\ of\ popular\ paperback\ book\ fit\ in\ 8\ foot\ shelf = (320)/(5)`

`Number\ of\ copies\ of\ popular\ paperback\ book\ fit\ in\ 8\ foot\ shelf = 64`

Therefore the number of copies of the popular paperback book fit in 8 foot shelf are 64 .