Combinatorial number - practice for 13 year olds - last page
Number of problems found: 32
- 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? - 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? - 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. - 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? - 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? - Three-digit numbers
How many three-digit numbers are from the numbers 0 2 4 6 8 (with/without repetition)? - The camp
At the end of the camp, a 8 friends exchanged addresses. Any friend gave their remaining 7 friends their card. How many addresses did they exchange? - Pairs
Teachers must choose one pair of boys and girls from the five girls and four boys. A) How many such pairs of (M + F)? B) How many pairs were only boys (M + M)? C) How many are all possible pairs?
- MATES
In MATES (Small Television tipping), from 35 random numbers are drawn five winning numbers. How many possible combinations are there? - Rectangles
How many rectangles with area 3152 cm² whose sides are natural numbers? - Tournament
Determine how many ways can be chosen two representatives from 34 students to school tournament.
We apologize, but in this category are not a lot of examples.
Do you have homework that you need help solving? Ask a question, and we will try to solve it.
Do you have homework that you need help solving? Ask a question, and we will try to solve it.
See also our combinations calculator. Combinatorial number - practice problems. Maths practice for 13 year olds.