# Combinatorial number - examples - page 4

- Combinations

How many elements can form six times more combinations fourth class than combination of the second class? - Dice

We throw five times the dice. What is the probability that six fits exactly twice? - Raffle

There are 200 draws in the raffle, but only 20 of them win. What is the probability of at least 4 winnings for a group of people who have bought 5 tickets together? - Test

The teacher prepared a test with ten questions. The student has the option to choose one correct answer from the four (A, B, C, D). The student did not get a written exam at all. What is the probability that: a) He answers half correctly. b) He answers. - Subsets

How many 19 element's subsets can be made from the 26 element set? - Combinations 6

6 purses 9 flaps 12 straps Every combination must include 1 purse, 1 flap and 1 strap. How many possible combinations? - Find the 2

Find the term independent of x in the expansion of (4x^{3}+1/2x)^{8}

We apologize, but in this category are not a lot of examples.

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Do you have interesting mathematical example that you can't solve it? Enter it and we can try to solve it.

See also our combinations calculator.