Question

“ Judy has a bag with 12 DVD’s, 12 marbles, 11 books, and 1 orange. What is the ratio of books to marbles? What is the ratio of DVD’s to the total number of items in the bag? What percentage of the items in the bag are DVD’s? “

Answer 1

First, let's calculate the total number of items:

`12+12+11+1=36`

The ratio of books to marbles is calculated by dividing the number of books by the number of marbles:

`ratio=\frac{books}{\text{marbles}}=(11)/(12)`

The ratio of DVD's to the total number of items is:

`\text{ratio}=\frac{\text{dvds}}{\text{total}}=(12)/(36)=(1)/(3)`

The percentage of dvd's from the total is:

`(1)/(3)=0.3333=33.33\text{\%}`