# Boys and girls

There are 20 boys and 10 girls in the class. How many different dance pairs can we make of them?

Correct result:

n =  200

#### Solution: We would be pleased if you find an error in the word problem, spelling mistakes, or inaccuracies and send it to us. Thank you! Tips to related online calculators
Would you like to compute count of combinations?

## Next similar math problems: There are 15 boys and 12 girls at the graduation party. Determine how many four couples can be selected.
• Big numbers How many natural numbers less than 10 to the sixth can be written in numbers: a) 9.8.7 b) 9.8.0
• Phone numbers How many 7-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated?
• Bookshelf and books How many ways can we place 7 books in a bookshelf?
• Divide How many different ways can three people divide 7 pears and 5 apples?
• Desks A class has 20 students. The classroom consists of 20 desks, with 4 desks in each of 5 different rows. Amy, Bob, Chloe, and David are all friends, and would like to sit in the same row. How many possible seating arrangements are there such that Amy, Bob,
• Lunch Seven classmates go every day for lunch. If they always come to the front in a different order, will be enough school year to take of all the possibilities?
• Math logic There are 20 children in the group, each two children have a different name. Alena and John are among them. How many ways can we choose 8 children to be among the selected A) was John B) was John and Alena C) at least one was Alena, John D) maximum one wa
• Three digits number How many are three-digit integers such that in they no digit repeats?
• Three digits number From the numbers 1, 2, 3, 4, 5 create three-digit numbers that digits not repeat and number is divisible by 2. How many numbers are there?
• Digits How many five-digit numbers can be written from numbers 0.3,4, 5, 7 that is divided by 10 and if digits can be repeated.
• Pairs At the table sit 10 people, 5 on one side and 5 on the other side. Among them are 3 pairs. Every pair wants to sit opposite each other. How many ways can they sit?
• Numbers How many different 3 digit natural numbers in which no digit is repeated, can be composed from digits 0,1,2?
• Digits How many natural numbers greater than 4000 which are formed from the numbers 0,1,3,7,9 with the figures not repeated, B) How many will the number of natural numbers less than 4000 and the numbers can be repeated?
• Kids How many different ways can sit 8 boys and 3 girls in line, if girls want to sit on the edge?
• Dinning room How many different combinations can we choose if there are 3 soups, 5 kinds of main dish and 2 desserts in the dining room?
• Friends in cinema 5 friends went to the cinema. How many possible ways can sit in a row, if one of them wants to sit in the middle and the remaining's place does not matter?