Points in plane
The plane is given 12 points, 5 of which is located on a straight line. How many different lines could by draw from this points?
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:
- Count of triangles
Given a square ABCD and on each side 8 internal points. Determine the number of triangles with vertices at these points.
It is true that the lines that do not intersect are parallel?
Hockey match ended 5:10. How many different matches could be?
How many different triads can be selected from the group 29 students?
Division has 18 members: 10 girls and 6 boys, 2 leaders. How many different patrols can be created, if one patrol is 2 boys, 3 girls and 1 leader?
- Fish tank
A fish tank at a pet store has 10 zebra fish. In how many different ways can George choose 4 zebra fish to buy?
- 2nd class combinations
From how many elements you can create 1081 combinations of the second class?
- First class
The shipment contains 40 items. 36 are first grade, 4 are defective. How many ways can select 5 items, so that it is no more than one defective?
15 boys and 10 girls are in the class. On school competition of them is selected 6-member team composed of 4 boys and 2 girls. How many ways can we select students?
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
- 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 confectionery
The confectionery sold 5 kinds of ice cream. In how many ways can I buy 3 kinds if order of ice creams does not matter?
How many ways can divide 12 players into two teams of 6 member?
The class is 22 students. How many ways can choose four to examination?
- Calculation of CN