A school club includes only sophomores, jiniors, and seniors, in the ratio of 1:3:2. If the club has 42 members, how many seniors are in the club?

A local card club will send 3 representatives to the national conference. If the the local club has 8 members, how many different groups of representatives could the club send?

The Crestview High School student body is made up only of freshmen , sophomores , juniors, and seniors . 25% of the students are freshmen , 35% are sophomores , and 20% are juniors . If no student can be considered to be in two classes, and there are 150 seniors , how many students make up the Crestview High School student body ?

The manager of a health club determines that the club's membership has increased at a rate of 16 percent per year for the past four years. The club currently has 42 members. If this trend continues, how many years will it take for the club's membership to exceed 100 membgers ?

At a school picnic, 1 junior and 1 senior will be selected to lead the activities. If there are 125 juniors and 100 seniors at the picnic, how many different 2 person combinations of 1 junior and 1 senior are possible?

Washington High School randomly selected freshman, sophomore, junior, and senior students for a survey about potential changes to next year’s schedule. Of students selected for the survey, 1/4 were freshmen and 1/3 were sophomores. Half of the remaining selected students were juniors. If 336 students were selected for the survey, how many were seniors ?

In a club of 35 boys and 28 girls, 80% of the boys and 25% of the girls have been members for more than 2 years. If n percent of the club have been members for more than 2 years, what is the value of n?

The ratio of number of males to number of females in a club are 7:4. If there are 84 males in the club, the total number of members in the club are

The members of the Mathematics club shook hands once with each of the other members. dotA total of 780 shake hand took place. Find how many. members are there in the club?