Table of Contents

- 1 How many combinations can you get with 4 numbers?
- 2 How many 4 digit numbers can be formed from the digits 1234?
- 3 How many four digit numbers have the property that their digit from left to right are consecutive and in ascending order?
- 4 How do you calculate total number of combinations?
- 5 How to find the possible number of combinations?
- 6 What is the formula for the number of possible combinations?

## How many combinations can you get with 4 numbers?

There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code. Berry analyzed those to find which are the least and most predictable.

### How many 4 digit numbers can be formed from the digits 1234?

How many 4 digit numbers can you make 1234? How many 4 digit numbers can you make 1234? Thus if you are not allowed to repeat a digit the number of possible 4 digit numbers you can construct from 1,2,3,4 is 4 3 2 1 = 24.

#### How many four digit numbers have the property that their digit from left to right are consecutive and in ascending order?

How many four-digit numbers have the property that their digits, from left to right, are consecutive and in ascending order? A5 B6 C 7 D8 E 9.

**How many 4 digit numbers can be formed in ascending order?**

How many different 4 digit numbers are there? There are 10,000 possible combinations that the digits 0-9 can be arranged into to form a four-digit code.

**What are the possible combinations of 4 numbers?**

Let’s call the four numbers a, b, c, and d. {a, b} is one combination, and {a, b, c, d} is another. We could list them all out, but let’s approach this in a more systematic way.

## How do you calculate total number of combinations?

Combination Calculator. In finite mathematics a combination is most typically calculated using the formula C(n,r) = n!/r!(n-r)!. In this formula n represents the total number of items and r represents the number of items to choose. The formula is modified depending on the importance of item order and repeating items in the set of allowed results.

### How to find the possible number of combinations?

Method 2 of 2: Calculating Combinations with Repetition Consider an example problem where order does not matter but repetition is allowed. In this kind of problem, you can use the same item more than once. Plug in your values for n {\\displaystyle n} and r {\\displaystyle r}. Solve the equation to find the number of combinations. You can do this either by hand or with a calculator.

#### What is the formula for the number of possible combinations?

The formula for combinations is generally n! / (r! (n — r)!), where n is the total number of possibilities to start and r is the number of selections made. In our example, we have 52 cards; therefore, n = 52.