Combinatorics - math word problems - page 34 of 55
Number of problems found: 1084
- Five-digit 82257
Determine the number of all five-digit natural numbers in which every two digits are different in decimal notation. - Indistinguishable 74294
We have eight compartments where we put three indistinguishable balls and two distinguishable ones. How many options do we have? - Starting 38113
How many ways can we put 19 students in a row when starting a gym? - Girlfriends 4107
Four girlfriends want to take a photo together. How many different ways can they stand side by side? - 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%? - Social beneficiaries
In a certain community, 52% are SAP beneficiaries, 15% are members of 4Ps, and 8% are both SAP and 4 Ps. If a citizen from the community is an SAP, what is the probability that he is also 4Ps? If that person is not a 4Ps, what is the probability that he i - 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? - Probability 7672
There are eight white balls and several blue balls in the pocket. The probability of pulling out the white ball is 2/3. How many blue balls are in your bag? - Double-digit 5631
Write how many double-digit numbers there are, which, if we multiply by four, we get the result ending in two zeros. - Probability 7154
82% of football players, and 26% are hockey players at school. What is the probability that: A) I'm not a hockey player B) I know both sports C) I know one sport - Balls in row
Calculate the number of ways of placing four black balls, four turquoise balls, and five gold balls in a row. - Probability - cards
What is the probability that when dealing cards after 4, in the game Quartet (eight of fours), we will get the whole quartet? - One three
We throw two dice. What is the probability that number three falls maximally once? - 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? - Probability 71164
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? - Triples 67394
How many triples of sounds can be created from sounds f, o, u, r? You solve using a tree diagram. - Different 65344
Marian obtained two different marks in one day. How many ways these marks can he get? - Different 38123
How many ways can we put seven different books on the shelf?
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