Combinatorial number + permutations - practice problems - last page
Number of problems found: 50
- Different 4533
Five different positive numbers are written on the board. Determine the largest possible number of pairs formed from them in which the sum of the two elements equals one of the five numbers written on the board. - There
There were 12 members on the commission. In the vote, five members were in favor, and seven members were against the proposal. In how many ways could it help the commission vote? - Divisions 4044
School players scored seven goals in the match. List all possible goal divisions into three-thirds and add up how many. - 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?
- Combinations of sweaters
I have four sweaters, two are white, one red and one green. How many ways can you sort it out? - 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 the match have? - Word
What is the probability that a random word composed of chars S, G, R, S, E, I, N, A, L, P, C, T, M, H, E, E will be the SPHERICALSEGMENT? - Rectangles
How many rectangles with area 3152 cm² whose sides are natural numbers?
We apologize, but in this category are not a lot of examples.
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