Combinatorial number - high school - practice problems - page 12 of 14
Number of problems found: 276
- Different 4117
The florist has 18 tulips and 15 freesias. How many different bouquets can she make if she uses all the flowers? How many freesias will there be in one bouquet? - Divisions 4044
School players scored seven goals in the match. List all possible goal divisions into three-thirds and add up how many. - Ice cream
Annie likes ice cream. In the shop are six kinds of ice cream. How many ways can she buy ice cream in three scoops if each has a different flavor mound and the order of scoops doesn't matter? - Determined 3570
There are 12 points in space, with no three lying on a straight line. How many different planes are determined by these points?
- Competition
Fifteen boys and ten girls are in the class. In the school competition of them is selected a 6-member team composed of 4 boys and two girls. How many ways can we choose students? - Probability 3349
We have natural numbers 3, 4, 6, 10, and 12. Calculate the probability that the sum of three randomly selected three different numbers is less than 20. - Together 3331
The group has 12 red girls and 25 blue girls in costumes. How many of them can we put together a group of 6 girls so that the four girls have red outfits? - Probability 3322
We have the numbers 4, 6, 8, 10, and 12. What is the probability that with a randomly selected triangle, these will be the lengths of the sides of a scalene triangle? - Probability 3080
There are eight styles of graduation topics in the Slovak language. The Minister of Education draws 4 of them. What is the probability that he will choose at least one of the pairs?
- Probability 3065
Natural numbers 4,5,7,11,12 are given. Calculate the probability of the event that the sum of randomly selected three different numbers is less than 22. - Cards
The player gets eight cards of 32. What is the probability that it gets a) all four aces b) at least one ace - Prize
How many ways can 9 participants be rewarded with the first, second, and third prizes in a sports competition? - Combinations
From how many elements can we create 990 combinations, 2nd class, without repeating? - Probability 2955
There are 18 girls and 13 boys in the class. Four pupils will be chosen by lot to supervise the breaks. What is the probability that it will be the boys themselves?
- Combinations of sweaters
I have four sweaters, two are white, one red and one green. How many ways can you sort it out? - Volleyball
Eight girls want to play volleyball against boys. On the field at one time can be six players per team. How many initial teams of these girls may be trainers to choose from? - Disco
At the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples? - Division
The division has 18 members: 10 girls, six boys, and two leaders. How many different patrols can be created if one patrol is two boys, three girls, and one leader? - Class pairs
In a class of 34 students, including 14 boys and 20 girls. How many couples (heterosexual, boy-girl) can we create? By what formula?
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See also our combinations calculator. Combinatorial number - math word problems. Examples for secondary school students.