Combinations Calculator (nCr)

0 to 3 toppings from 3 options; we must calculate each possible number of choices from 0 to 3 and get C(3,0) + C(3,1) + C(3,2) + C(3,3) = 8; Multiplying the possible combinations for each category we calculate: 8 × 10 × 10 × 8 =

  • 852+

    Math Teachers

  • 9.4/10

    Star Rating

Determine math

Combination Calculator (nCr, nPr)

How to calculate the number of possible combinations? For n people sitting on k chairs, the number of possibilities is equal to n* (n-1)* (n-2)*1 divided by the number of