The ratio of rabbits to guinea pigs to hamsters in a pet store is 3:2:4. If there are 12 rabbits in the pet store, how many hamsters are there?

Reduce the following proportion to its simplest form:

Megan buys cookie packs that come in either small or large sizes. The small size has 3 vanilla cookies and 2 chocolate cookies. The large size has the same proportion of vanilla and chocolate cookies. The large comes with 6 chocolate cookies. How many vanilla cookies are in the large box?

On a map, one inch is equal to miles. How many inches will be on the map for a a distance of miles?

If Kristin makes $300 in a week when she works 15 hours, how much would she make if she worked 24 hours next week at the same rate?

If it takes Linda 6 minutes to complete a multiple choice question, then what percentage of a 10 question multiple choice test will she complete in half an hour?

If the ratio of boys to girls in a class is , what fraction of the class is boys?

On a typical day, twenty percent of the pies that a pie store sells are blueberry pies. If the store sells forty pies on just such a typical day, how many blueberry pies were likely sold?

A drawer contains 5 pairs of blue socks, 2 pairs of white socks, 4 pairs of brown socks, and 7 pairs of black socks. What is the proportion of brown socks?

The ratio of men to women in a room is . If the room has 21 people, and 2 men then leave the room, what is the proportion of men in the room?