Combinatorics - math word problems - page 35 of 55
Number of problems found: 1085
- Green - Red
We have 4 bags. Each consists of one green and 2 red balls. From each, we pull just one ball. What is the probability that we don't pull any green ball? - Dice even probability
We roll the dice twice. What is the probability that if an even number falls for the first time, the even number will fall a second time? - People lineup probability
A group of n people, including Jano and Fero, randomly line up. What probability will there be exactly r people (r - Ball drawing probability
We have five red and seven white balls in a hat. What is the probability of pulling: a) a red ball? b) a white ball? - Task success percentage
Out of 30 tasks, Peter solved 24 correctly. Find success rate in percent. - Dice roll probability
We roll two dice, red and green. What probability will a more significant number fall on the red dice than on the green? - Twelve-position number system
Write the 12 largest five-digit numbers in the twelve-position system and the 12 smallest six-digit numbers. - Photo arrangement
Four girlfriends want to take a photo together. How many different ways can they stand side by side? - Divisible numbers
How many 3-digit numbers can be composed of the digits 1,3,5,7,9 if the digits are not allowed to be repeated in the number notation? How many of them are divisible by five? - Bouquet arrangements
The florist has 18 tulips and 15 freesias. How many different bouquets can she make if she uses all the flowers? How many freesias will there be in one bouquet? - Card drawing
Each of the three players draws 3 top cards from the deck of 54 cards and returns one card to the deck from the bottom. The first, second, and third players alternate regularly. In which round does the first player draw again the card he got rid of in the - Sweets
There are 12 sandwiches on a plate, 5 of which are poppy seeds and 7 are jam. How many cheese sandwiches must be added to them so that the probability that a randomly selected sandwich is poppy seed is 20%? - Cancer in woman population
In a particular population of women, 40% have had breast cancer, 20% are smokers, and 13% are smokers and have had breast cancer. If a woman is selected at random from the population, what is the probability that she has breast cancer, smokes, or both? - Smoker male
For a person selected randomly from a certain population, events A and B are defined as follows. A = event the person is male B = event the person is a smoker. For this particular population, it is found that P(A ) = 0.53, P(B) = 0.15, and P(A n B ) = 0.1 - Inverted nine
In the hotel Inverted Nine, each hotel room number is divisible by 6. How many rooms can we count with the three-digit number registered by digits 1, 8, 7, 4,9? - Book reading orders
Petra borrowed four books from the library at the beginning of the summer holidays. How many orders in which she could gradually read them? - Shampoo display ways
How many ways can an arranger display five different shampoos horizontally next to each other? - Book selection ways Marenka is required to read three books out of five designated books. How many ways can three books choose to be read?
- Group placement ways
I have eight groups. How could they place first, second, and third? - Created trio
What is the probability that in the created trio, which consists of 19 boys and 12 girls, they will be: a) the boys themselves b) the girls themselves c) 2 boys and one girl?
Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.
