Combinatorics - math word problems - page 36 of 57
Number of problems found: 1135
- Number selection probability
If we choose four numbers from 1 - 20, what is the probability that 6 or 10 will be among them? - Possible combinations - word
How many ways can the letters F, A, I, and R be arranged? - Five-digit numbers
How many different five-digit numbers can be created from the number 2,3,5 if the number 2 appears in the number twice and the number 5 also twice? - Probability of White Balls
In the first container, we have 3 white and 6 black balls. In the second container, we have 2 white and 6 black balls. We randomly transfer 1 ball from the first container to the second container. What is the probability that I then pick 2 white marbles f - Two aces
From a 32-card box, we randomly pick 1 card and then two more cards. What is the probability that the last two drawn cards are aces? - 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? - Playing cards
In how many possible ways can 6 playing cards be shuffled? - 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. - Hockey Championships
At the 2021 World Hockey Championships, there are eight teams in Group A, each playing seven matches. There are 4 points for each team to gain points (3-2-1-0), but it is always paired with the opponent's points ( 0-1-2-3). How many points are there possi - 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 with poppy seeds and 7 with jam. How many cheese sandwiches must be added so that the probability of randomly selecting a poppy seed sandwich is 20%? - House number divisibility
The number of Beata's house is 2018. The numbers of Jura's and Dan's houses are made up of the same numbers. A) What number of Jura's house can be if it is divisible by 4? List all the options. B) What can Dan's house number be if it is divisible by 5? Li - An aircraft
An aircraft manufacturing company has submitted bids on two separate airline contracts, A and B. The company feels it has a 70% chance of winning contract A and a 25% chance of winning contract B. Furthermore, it believes that winning contract A is indepe - Combinations 6
Six purses Nine flaps 12 straps Every combination must include one purse, one flap, and one strap. How many are possible combinations? - 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? - Maroš
Mark draws two cards from a deck of Mariáš cards (32 cards). What is the probability that he draws a seven or an ace, but not the green seven? - Car parking ways
How many ways can ten cars park side by side in a parking lot? - Group placement ways
I have eight groups. How could they place first, second, and third?
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