Variations + multiplication - math problems
Number of problems found: 90
- 2nd class variations
From how many elements you can create 2450 variations of the second class?
Determine the number of items when the count of variations of fourth class without repeating is 42 times larger than the count of variations of third class without repetition.
In how many ways can be divided gold, silver and bronze medal among 21 contestant?
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
How many are all subsets of set ??
- Possible combinations - word
How many ways can the letters F, A, I, R be arranged?
- Pins 2
how many different possible 4 digits pins can be found on the 10-digit keypad?
- Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
The city has 7 fountains. Works only 6. How many options are there that can squirt ?
Seven friends agree to send everyone a holiday card. How many postcards were sent?
From the colors - red, blue, green, black and white, create all possible tricolors.
- Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
In the non-transparent bags are red, white, yellow, blue tokens. We 3times pull one tokens and again returned it, write down all possibilities.
- Six on dice
What is the probability that when throwing two dice will fall at least one six?
In how many ways can 9 shuttle vans line up at the airport?
- Task of the year
Determine the number of integers from 1 to 106 with ending four digits 2006.
How many ways can we thread 4 red, 5 blue, and 6 yellow beads onto a thread?
- Word MATEMATIKA
How many words can be created from the phrase MATEMATIKA by changing the letters' order, regardless of whether the words are meaningful?
- Football league
In the 5th football league is 10 teams. How many ways can be filled first, second and third place?
How many ways can you place 20 pupils in a row when starting on practice?
See also our variations calculator.