Combinatorics - math word problems - page 32 of 51
Combinatorics is a part of mathematics that investigates the questions of existence, creation and enumeration (determining the number) of configurations.It deals with two basic tasks:
How many ways can we select certain objects
How many ways can we arrange certain objects
Number of problems found: 1005
- Horizontally 64874
How many ways can an arranger display five different shampoos horizontally next to each other? - Probability 59073
A group of n people, including Jano and Fero, randomly line up. What probability will there be exactly r people (r - Significant 19983
We roll two dice, red and green. What probability will a more significant number fall on the red dice than on the green? - Numbers 7755
How many digits 7 are in numbers from 1 to 777?
- Intersection of the lines
How many points do nine lines intersect in a plane, of which four are parallel, and of the other five, no two are parallel (and if we assume that only two lines pass through each intersection)? - Beads
How many ways can we thread four red, five blue, and six yellow beads onto a thread? - Tournament
Determine how many ways can be chosen two representatives from 34 students to school tournament. - Gradually 67284
Petra borrowed four books from the library at the beginning of the summer holidays. How many orders in which she could gradually read them? - Probability 41211
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?
- Positions 26151
How many positions are there to store three books on the shelf? - Probability 17503
We choose four numbers from numbers 1 - 20. What probability will the numbers 6 or 10 be among them? - Three-digit 11041
How many three-digit numbers can be composed of 0.5,9 digits? - Possible combinations - word
How many ways can the letters F, A, I, and R be arranged? - Four-digit 82023
How many four-digit numbers are there in which there are at least three eights
- Probability 81678
What is the probability of guessing a PIN code (4 numbers) if it contains only even numbers? - Probability 81446
What is the probability that each digit is different in a five-digit number? - Parking 72644
How many ways can ten cars park side by side in a parking lot? - Four-letter 67124
How many different four-letter words can we create from the letters of the word JAMA? - Non-repeating 30101
1. How many different options are there for exchanging a ten-euro bill with one-euro, two-euro, and five-euro bills? a) 5 b) 8 c) 14 d) 10 2. How many non-repeating three-digit numbers can be written using odd digits? a) 999 b) 225 c) 60 d) 25
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