Variations + permutations - practice problems - last page
Number of problems found: 158
- Password dalibor
Kamila wants to change the password daliborZ by a) two consonants exchanged between themselves, b) changes one little vowel to such same great vowel c) makes these two changes. How many opportunities do you have a choice? - Three-digit numbers
How many three-digit numbers are from the numbers 0 2 4 6 8 (with/without repetition)? - Neighborhood
I have 7 cups: 1 2 3 4 5 6 7. How many opportunities for standings cups are there if 1 and 2 are always neighborhood? - Olympics
How many ways can six athletes be placed on the podium at the Olympics? Depend on the color of the metal.
- Hockey players
After we cycle, five hockey players sit down. What is the probability that the two best scorers of this crew will sit next to each other? - Training
The table contains the tennis training schedule for Saturday's younger students during the winter indoor season. Before the start of the summer season is preparing a new training schedule. Tomas Kucera will be able to practice only in the morning. Sisters - Numbers
How many different 3 digit natural numbers in which no digit is repeated can be composed of digits 0,1,2? - Peak
Uphill leads 2 paths and one lift. a) How many options back and forth are there? b) How many options to get there and back by the not same path are there? c) How many options back and forth are there that we go at least once a lift? - Lock
A combination lock will open when the right choice of 3 numbers (from 1 to 16 inclusive) is selected. A. How many different lock combinations are possible? B. Is the combination lock named appropriately?
- Vans
In how many ways can 5 shuttle vans line up at the airport? - 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? - Toys
3 children pulled 9 different toys from a box. How many ways can toys be divided, so each child has at least one toy? - 7 heroes
6 heroes galloping on 6 horses behind. How many ways can we sort them behind? - Subsets
How many are all subsets of set C = (97, 67, 66, 18, 59, 64)?
- Flags
How many different flags can be made from green, white, blue, red, orange, yellow, and purple materials, so each flag consists of three different colors? - Chess
How many ways can you select 4 fields on a classic chessboard with 64 fields so that fields don't have the same color? - Seating
How many ways can 7 people sit on 5 numbered chairs (e. g., seat reservation on the train)? - N-gon
How many diagonals have convex 30-gon?
Do you have homework that you need help solving? Ask a question, and we will try to solve it.