Question

In a dance hall, the ratio of the number of men who are dancing to the number of women who are dancing is 2:3. If there are 30 men dancing, how many women are dancing in the hall?

Answer 1

If the ratio of the number of men who are dancing to the number of women who are dancing is 2:3, then the total ratio representing the number of people dancing in the hall is 2+3 =5
Since there are 30 men dancing, the number of women dancing in the hall is 3/2*30 = <<3/2*30=45>>45. Answer: \boxed{45}.