Combinatorics - math word problems - page 32 of 54
Number of problems found: 1079
- The dice
What is the probability of events if we throw a dice rolled less than 1? - Phone number
A phone number with nine digits, none of which are repeated. The middle number in the second three-digit number is 3 times greater than the 6th and twice greater than the 7th. The three-digit number in the middle 3 numbers is 2 times greater than the last - Divisible 6615
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? - Distances 83452
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? - Percentages 83188
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. - Probability 17503
If we choose four numbers from 1 - 20, what is the probability that 6 or 10 will be among them? - Representative 8328
How many ways can a commander and a representative of a 20-member group be elected?
- Girlfriends 4107
Four girlfriends want to take a photo together. How many different ways can they stand side by side? - Statistics quiz
Fill in the missing word. 1. in a data set, the mean, median, and mode are measured of ________________ 2. "The manipulation of variables under controlled conditions" is the data collection method known as______________ 3. in a normal distribution, the ar - We randomly
We randomly select a three-digit number. What is the probability that the number 8 occurs at most once in its notation? - Two groups
The group of 10 girls should be divided into two groups with at least four girls in each group. How many ways can this be done? - 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? - 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? - Sum 10
What is the probability that two dice thrown twice in a row will result in the sum of 10? - Three-digit numbers
How many three-digit numbers are from the numbers 0, 2, 4, 6 8 (with/without repetition)?
- Chess
How many different ways can you initiate a game of chess (first pass)? - Combinations 6
Six purses Nine flaps 12 straps Every combination must include one purse, one flap, and one strap. How many are possible combinations? - 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? - Calculation 73364
From the number 5,4,0,7,8, create three-digit numbers, so they do not repeat and solve the problem by calculation. - Between 72924
How many ways do we know to select three cards from a deck of seven cards so that there are two red and one green between them?
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