Multiplication principle + variations - math problems
Number of problems found: 88
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.
- 2nd class variations
From how many elements you can create 2450 variations of the second class?
Seven friends agree to send everyone a holiday card. How many postcards were sent?
In how many ways can be divided gold, silver and bronze medal among 21 contestant?
- Pins 2
how many different possible 4 digits pins can be found on the 10-digit keypad?
- Task of the year
Determine the number of integers from 1 to 106 with ending four digits 2015.
- Possible combinations - word
How many ways can the letters F, A, I, R be arranged?
The city has 7 fountains. Works only 6. How many options are there that can squirt ?
- 7 heroes
9 heroes galloping on 9 horses behind. How many ways can sort them behind?
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
- Cars plates
How many different licence plates can country have, given that they use 3 letters followed by 3 digits?
- Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
- One three
We throw two dice. What is the probability that max one three falls?
Six teams entered the basketball tournament. How many matches will be played if each team has to play one match with each other?
- Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
In how many ways can 9 shuttle vans line up at the airport?
How many ways can 6 people sit on 6 numbered chairs (e. g. , seat reservation on the train)?
- Six on dice
What is the probability that when throwing two dice will fall at least one six?
I have 7 cups: 1 2 3 4 5 6 7. How many opportunities of standings cups are there if 1 and 2 are always neighborhood?
How many are all subsets of set ??
See also our variations calculator. Multiplication principle - math word problems. Variations - math word problems.