The ratio of boys to girls at a school assembly is 3 to 5. A total of 64 students attended. How many of them were girls?

Each week, Daniel spends 5 hours reading for every 3 hours playing video games. If he spent 20 hours reading in one week, how many hours did he spend playing video games?

There are 60 animals on a farm. The ratio of cows to goats is 2 : 3. How many goats are there?

It rained on 4 out of every 7 days in the month of June. There are 28 days in June. On how many days did it rain that month?