Check digit number: Find the maximum number of distinct.

Make all combinations of size k; Sum of GCD of all possible sequences; Longest permutation subsequence in a given array; Number of ways to write N as a sum of K non-negative integers; Probability of getting K heads in N coin tosses; Total number of BSTs using array elements; Sum of all subsequences of length K; Count ways to reach the Nth stair using multiple 1 or 2 steps and a single step 3.

Now, how do we calculate the number of possible combinations? Use the following formula: First, let me explain the notation on the left. That means that from a group of n objects, we are selecting r of them. It's just a standard notation used for combinations, but you might also see something like nCr used instead. The rest of the formula is more straightforward. Remember that the ! means.

Our combination calculator will allow you to calculate the number of combinations in a set of size n. A combination describes how many sets you can make of a certain size from a larger set. For example, if you have 5 numbers in a set (say 1,2,3,4,5) and you want to put them into a smaller set (say a set of size 2), then the combination would be the number of sets you could make without regard.

You can see immediately that there is a point of maximum revenue. Next, use the R function optimize() to find the value of that maximum. To use optimize(), you need to tell it which function to use (in this case, revenue() ), as well as the interval (in this case, prices between 50 and 150).

When they are required, you need different plates depending on the length of the vehicle. You must make sure that loads must not project more than 305mm either side of the trailer, up to a maximum width of 2.9m. If they do then you must notify the police two days before a journey commences.

RFEM creates load, result and action cases and combinations automatically in compliance with the Eurocodes and other international standards (incl. NAs).

Combination Calculator to Find All Possible Combinations of Numbers or Letters This combination generator will quickly find and list all possible combinations of up to 7 letters or numbers, or a combination of letters and numbers. Plus, you can even choose to have the result set sorted in ascending or descending order. Finally, you can switch between having the results displayed in a field.

Let's do this in general. Suppose you want as many kids as possible to at some flavour(s) from the ice-cream cafe and there are x flavours. What is the maximum number of kids that they can all eat ice-cream, so that nobody has exactly the same combination of other kids? Let's first find out the pattern. Let's say there is one flavour: A.

Once a ball is drawn, that number cannot be repeated. For the five white balls, there are 5,006,386 combinations that may be drawn. Because there are 35 red balls, the total number of combinations for the white balls is multiplied by 35. Therefore, the total number of possible combinations is 175,223,510. There are eight other ways to win a.

Since any color can be repeated, that means the number of combinations can be see like this: Each spot can be any one color (rrr, bbb, or yyy). There are only 3 combinations for this.

Explanation:. There are 5x4x3 ways to arrange 5 flavors in 3 ways. However, in this case, the order of the flavors does not matter (e.g., a cone with strawberry, mint, and banana is the same as a cone with mint, banana, and strawberry).