Determine the number of items when the count of variations of fourth class without repeating is 50 times larger than the count of variations of third class without repetition.
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
- Task of the year
Determine the number of integers from 1 to 106 with ending four digits 2001.
In the Hockey World Cup play eight teams, determine how many ways can they win gold, silver and bronze medals.
The city has 10 fountains. Works only 7. How many options are there that can squirt ?
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
In elections candidate 8 political parties. Calculate how many possible ways can the elections finish, if any two parties will not get the same number of votes.
- Football league
In the 2nd football league is 19 teams. How many ways can be filled first, second and third place?
- Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
In how many ways can be divided gold, silver and bronze medal among 18 contestant?
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?
From the colors - red, blue, green, black and white, create all possible tricolors.
In the non-transparent bags are red, white, yellow, blue tokens. We 3times pull one tokens and again returned it, write down all possibilities.
- Count of triangles
Given a square ABCD and on each side 8 internal points. Determine the number of triangles with vertices at these points.
- Weekly service
In the class are 16 pupils. How many opportunities have the teacher if he wants choose two pupils randomly who will weeklies?
The village markets have 8 kinds of sweets, one weighs 15 grams. How many different ways a customer can buy 0.915 kg sweets.
- Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
- PIN - codes
How many five-digit PIN - code can we create using the even numbers?
What are the chances that the lottery, in which the numbers are drawn 5 of 50 you win the first prize?