Combinatorics - math word problems - page 32 of 55
Number of problems found: 1085
- Train Set Markings
For shorter distances, small train sets are marked with three different letters from the company name run; how many small sets can be marked like this? - Bag error probability
There are 10 bags displayed in the store, 2 of which have a hidden error. Buyers randomly choose one bag. Express in percentages the probability that they will buy the bag without a mistake. - How many 23
How many times should a dice be rolled to obtain a most likely number of 2 points on it to be equal to 32? - Balls in row
Calculate the number of ways of placing four black balls, four turquoise balls, and five gold balls in a row. - Round table
Eight people are sitting at a round table. In how many ways can they be seated around the table? - Gold, silver, bronze
How many ways can we divide gold, silver, and bronze medals if six people compete? - Birth
Let's assume that the probability of the birth of a boy and a girl in the family is the same. What is the probability that the youngest and oldest child in a family with five children is a boy? - Three-digit numbers
Use the number 4,5,8,9 to write all three-digit numbers without repetition. How many such numbers are there? - Digits
How many five-digit numbers can be written from numbers 0.3,4, 5, and 7 divided by 10, and digits are repeated? - Tricolors
From the colors - red, blue, green, black, and white, create all possible tricolors. - Cards
Suppose that are three cards in the hats. One is red on both sides, one of which is black on both sides, and a third one side red and the second black. We randomly pull out a hat on one card and see one side of it is red. What is the probability that the - Three-digit numbers
How many three-digit numbers are from the numbers 0, 2, 4, 6 8 (with/without repetition)? - Neighborhood
I have 7 cups: 1 2 3 4 5 6 7. How many opportunities for standings cups are there if 1 and 2 are always neighborhood? - Olympics
How many ways can six athletes be placed on the podium at the Olympics? Depends on the color of the metal. - MATES
In MATES (Small Television tipping), from 35 random numbers, five winning numbers are drawn. How many possible combinations are there? - Two-Digit Numbers Multiply Four Write how many double-digit numbers there are, which, if we multiply by four, we get the result ending in two zeros.
- Sound triple creation
How many triples of sounds can be created from sounds f, o, u, r? You solve using a tree diagram. - Marian mark ways
Marian obtained two different marks in one day. How many ways these marks can he get? - Book shelf arrangement
How many ways can we put seven different books on the shelf? - Six-digit number creation
How many 6-digit numbers can be created from the number 1,2,3,4,5,6 if we must not repeat the numbers?
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