Class pairs

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Next similar math problems:

• Boys and girls
  There are 20 boys and 10 girls in the class. How many different dance pairs can we make of them?
• Pairs
  From the five girls and four boys teachers have to choose one pair of boy and girl. A) How many such pairs of (M + F)? B) How many pairs where only boys (M + M)? C) How many are all possible pairs?
• School parliament
  There are 18 boys and 14 girls in the class. In how many ways can 3 representatives be elected to the school parliament, if these are to be: a) the boys themselves b) one boy and two girls
• Disco
  On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
• Competition
  15 boys and 10 girls are in the class. On school competition of them is selected 6-member team composed of 4 boys and 2 girls. How many ways can we select students?
• Girls
  The boys and girls in the class formed without the rest of the fives, 2 girls and 3 boys. There are 6 girls missing to create mixed pairs (1 boy and 1 girl). How many girls are in the classroom?
• Classroom
  Of the 26 pupils in the classroom, 12 boys and 14 girls, four representatives are picked to the odds of being: a) all the girls b) three girls and one boy c) there will be at least two boys
• Graduation party
  There are 15 boys and 12 girls at the graduation party. Determine how many four couples can be selected.
• Ski class
  Class attend 30 boys and some number of girls. Ski training was attended by 28 boys and all the girls, which was 95% of all students. How many girls attend this class? How many percent is that?
• Tournament
  Determine how many ways can be chosen two representatives from 34 students to school tournament.
• Boys and girls
  There are eight boys and nine girls in the class. There were six children on the trip from this class. What is the probability that left a) only boys b) just two boys
• Kids
  How many different ways can sit 8 boys and 3 girls in line if girls want to sit on the edge?
• Weekly service
  In the class are 20 pupils. How many opportunities have the teacher selected two pupils who will have a week-class service randomly?
• Jane class
  When asked how many students are in class, Jane said, if we increase the number of students in our class by hundred % and then add half the number of students, we get 100. How many students are in Jane's class?
• Honored students
  Of the 25 students in the class, 10 are honored. How many ways can we choose 5 students from them, if there are to be exactly two honors between them?
• Families 2
  Seven hundred twenty-nine families are having six children each. The probability of a girl is 1/3, and the probability of a boy is 2/3. Find the number of families having two girls and four boys.
• Four-member team
  There are 14 girls and 11 boys in the class. How many ways can a four-member team be chosen so that there are exactly two boys in it?