# Combinatorial number + reason - math problems

#### Number of problems found: 57

- Salami

How many ways can we choose 5 pcs of salami if we have 6 types of salami for 10 pieces and one type for 4 pieces? - Points in plane

The plane is given 12 points, 5 of which are located on a straight line. How many different lines could be drawn from these points? - 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? - Combinations of sweaters

I have 4 sweaters two are white, 1 red and 1 green. How many ways can this done? - Hockey game

In the hockey game was made six goals. Czech played against Finland. Czechs won 4:2. In what order to fall goals? How many game sequences were possible during the game? - Three-digit numbers

How many three-digit numbers are from the numbers 0 2 4 6 8 (with/without repetition)? - Hockey match

The hockey match ended with a result of 3:1. How many different storylines may have the match? - The confectionery

The confectionery sold 5 kinds of ice cream. In how many ways can I buy 3 kinds if order of ice creams does not matter? - The camp

At the end of the camp a 8 friends exchanged addresses. Any friend gave remaining 7 friends his card. How many addresses they exchanged? - 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? - Circles

How many different circles are determined by 9 points at the plane if 6 of them lie in a straight line? - Cinema

How many ways can be divided 11 free tickets to the premiere of "Jáchyme throw it in the machine" between 6 pensioners? - Chocolates

In the market we have 3 kinds of chocolates. How many ways can we buy 14 chocolates? - Lines

In how many points will intersect 14 different lines, where no two are parallel? - Hockey

The hockey match ended 8:2. How many different matches could be? - Party

At the party everyone clink with everyone. Together, they clink 406 times. How many people were at the party? - Family

What is the probability that a family with 7 childrens have: exactly 6 dívek? 2 dívky and 5 boys? Consider the birth probability of a girl is 48.87% and boy 51.13%.

Do you have an exciting math question or word problem that you can't solve? Ask a question or post a math problem, and we can try to solve it.

See also our combinations calculator. Combinatorial number - math problems. Reason - math problems.