Combinatorics - math word problems - page 37 of 54
Number of problems found: 1080
- Ace or king
What is the probability that we will choose an ace or a king when choosing from a deck of sevens cards? - Fruits
The shop sells four kinds of fruits. How many ways can we buy three pieces of fruit? - Seven
Seven friends agreed to send everyone a holiday card. How many postcards were sent? - Playing cards
How many possible ways are there to shuffle 6 playing cards? - Five-digit 80104
How many different five-digit numbers with different digits can be made from the digits 0, 2, 4, 6, 7, 8, and 9? How many of them are divisible by 4? How many of them are divisible by 10? How many of them are even? - Probability 6761
Jano created 2-digit numbers from the cards 2, 4, 5, 9, and 2. What probability will a randomly generated number be odd? - Four digit codes
Given the digits 0-7. If repetition is not allowed, how many four-digit codes greater than 2000 and divisible by 4 are possible? - Red balls
The bag has three red, 12 blue, and eight green balls. If we want the probability of pulling out the red balls to be 20%, how many red balls must we add to the bag? - Numbers 72404 How many numbers are less than 200, the digit sum of which is 6?
- Designated 64234
Marenka is required to read three books out of five designated books. How many ways can three books choose to be read? - Ways
There are five roads from village A to village B, two roads from village B to village C, and only one road directly from village A to village C. In how many different ways can you get there: A) from village A to village C via village B? B) anyway from vil - Red cubes
There are 15 white and several red cubes in the box. The probability of accidentally pulling out a white cube is 20%. How many red cubes are in the box? - Three colors
Find the probability that three balls of the same color will be drawn from fate with ten white, ten red, and ten blue balls. - Cancel fractions
Compress the expression of factorial: (n+6)!/(n+4)!-n!/(n-2)! - Three dice
What is the probability that when we roll three dice, we roll the number 1,2,3? - Hearts
3 cards are chosen from a standard deck of 52 playing cards (13 hearts) with replacements. What is the probability of choosing 3 hearts in a row? - Four-letter 67124
How many different four-letter words can we create from the letters of the word JAMA? - Correctly 20713
Out of 30 tasks, Peter solved 24 correctly. Find success rate in percent. - Five-digit 13361
Write the 12 largest five-digit numbers in the twelve-position system and the 12 smallest six-digit numbers. - Lathe
95% of the components manufactured on the lathe comply with the standard, of which 80% of the components are first-class. How likely can we expect a manufactured part to be first class?
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