Write all two-element combinations from elements a, b, c, d.
We will be pleased if You send us any improvements to this math problem. Thank you!
Thank you for submitting an example text correction or rephasing. We will review the example in a short time and work on the publish it.
Tips to related online calculators
Would you like to compute count of combinations?
You need to know the following knowledge to solve this word math problem:
Related math problems and questions:
If the number of elements increase by 3, it increases the number of combinations of the second class of these elements 5 times. How many are the elements?
How many 19 element's subsets can be made from the 26 element set?
- 2nd class combinations
From how many elements you can create 4560 combinations of the second class?
- Combinations of sweaters
I have 4 sweaters two are white, 1 red and 1 green. How many ways can this done?
- Combinations 6
6 purses 9 flaps 12 straps Every combination must include 1 purse, 1 flap, and 1 strap. How many are possible combinations?
If the number of elements is decreased by two the number of permutations is decreased 30 times. How many elements are?
How many different ways can three people divide 7 pears and 5 apples?
- Hockey game
In the hockey game was made six goals. Czech played against Finland. Czechs won 4:2. In what order to fall goals? How many game sequences were possible during the game?
- Three-digit numbers
How many three-digit numbers are from the numbers 0 2 4 6 8 (with/without repetition)?
From how many elements we can create 990 combinations 2nd class without repeating?
- Hockey match
The hockey match ended with a result of 3:1. How many different storylines may have the match?
Dana confuses sweater and wool has a choice of seven colors. In how many ways can she choose from three colors to the sleeves?
- Two groups
The group of 10 girls should be divided into two groups with at least 4 girls in each group. How many ways can this be done?
How many elements can form six times more combinations fourth class than combination of the second class?
From the five girls and four boys teachers have to choose one pair of boy and girl. A) How many such pairs of (M + F)? B) How many pairs where only boys (M + M)? C) How many are all possible pairs?
How many different combinations of two-digit number divisible by 4 arises from the digits 3, 5 and 7?
How many ways can divide 10 identical candies to 5 children?