Natural numbers + multiplication principle - practice problems - page 5 of 12
Number of problems found: 234
- City path count
There are 5 roads from city A to city B, 3 from city B to city C, and 4 from city C to city D. Determine the number of paths that go from A to D via B and C. - Three-digit number creation
From the number 5,4,0,7,8, create three-digit numbers, so they do not repeat and solve the problem by calculation. - Green and red cubes
There are five green cubes (numbered 1 - 5) and four red cubes (numbered 1 - 4). How many ways can the cubes fit in a box that only needs two green and three red cubes? - Book reading ways
Martina borrowed three novels and two travelogues from the library. He will read the travelogues first. How many ways can he read the books? - Car sign
How many cars can we mark with signs that only use the letters A, B, and the number 1,2? The tag contains two letters and three digits. - Competition placement options
How many ways could the four participants in the finals of the Pete, George, Martin, and Števo sports competition take the first three places? Write each option. - Three-digit
How many three-digit natural numbers do not have the number 7? - Natural numbers
How many natural numbers can we create less than 301 from the number 0,1,2,3,6,7? - Five-digit different digits
Determine the number of all five-digit natural numbers in which every two digits are different in decimal notation. - Three-digit number creation How many three-digit numbers can be created from the numbers 1, 2, 3, and 4 if you can repeat them?
- Three-digit number How many three-digit natural numbers can we form from the digits 0, 1, and 2 if the numerals can be repeated in these numbers?
- Face combinations
If I have 20 sets of eyes, 20 noses, and 20 mouths, how many unique face combinations can I make? - Pants shirt combinations
He has four types of pants. How many T-shirts does he have if he can dress 40 different ways? - ID tag How many three-digit ID-tag can be made if: a) a digit cannot be used more than once b) the 1st digit must be five, and repetition of the others is not permitted.
- Four-digit number creation
How many can we create four-digit numbers that digits can repeat from digits 0,1,2,3,…, 9? - Four-digit natural numbers
Determine the number of all four-digit natural numbers in decimal notation in which the digit 0 is not present, and each of the remaining nine numbers occurs at most once. - Group placement ways
I have eight groups. How could they place first, second, and third? - Right key
The hostel has 4 rooms. The keys to each room are not numbered. Each of the four guests took one key. What is the probability that everyone took the right key? - Tic-tac-toe
In how many ways could 9 participants of the school round of five-in-a-row win the first three places? - 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 travel: A) from village A to village C via village B? B) from village A to
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