49. Class 6-1 holds skipping and tug-of-war competitions, the number of participants accounts for $80 \%$ of the total class. Those who participate in skipping account for $50 \%$ of the participants; those who participate in tug-of-war account for $\frac{2}{3}$ of the participants, and 6 people participate in both activities. The total number of people in the class is $\qquad$ people.
Reference answer: 45