The ratio of boys to girls in a class is 3:2. If there are 20 boys, how many girls are there?
Options:
A) 10
B) 12
C) 15
D) 20
Answer:
B) 12
Solution:
Since the ratio is 3:2, for every 3 boys, there are 2 girls. If there are 20 boys, there are 6 sets of 3 boys. Therefore, there are 6 sets of 2 girls each, which equals 12 girls.
