Multiplication + reason - practice problems - page 6 of 18
Number of problems found: 349
- Spouses 61294
Ten married couples board the train, which has five cars. How many ways can they take if no two spouses want to be in the exact vehicle? - Necklaces 8006
Elena has four beads: yellow, two pink, and green. How many different colored necklaces can he create? - Probability 6761
Jano created 2-digit numbers from the card 2 4 5 9 2. What probability will a randomly generated number be odd? - Three-digit 5226
How many different three-digit natural numbers can be created so that the digits are different and the last digit is 0? - Inscription: 5099
We roll the dice five times. Inscription: A) 3 events that definitely cannot happen. Write a reason for each. B) 3 events that will definitely happen. Write a reason for each. C) 3 events that may or may not occur. Write a reason for each. - We randomly
We randomly select a three-digit number. What is the probability that the number 8 occurs at most once in its notation? - Boys and girls
There are 20 boys and ten girls in the class. How many different dance pairs can we make of them? - Pages counting
There are pages numbered 2 to 104 in the book. How many digits have to be printed to number the pages? - Digits
How many five-digit numbers can be written from numbers 0.3,4, 5, and 7 divided by 10, and digits are repeated? - First class
The shipment contains 40 items. 36 are first-grade, and four are defective. How many ways can we select five items so that it is no more than one defective? - Permutations
How many 4-digit numbers can be composed of numbers 1,2,3,4,5,6,7 if: and the digits must not be repeated in the number b, the number should be divisible by five, and the numbers must not be repeated c, digits can be repeated - Competition
Fifteen boys and ten girls are in the class. In the school competition of them is selected a 6-member team composed of 4 boys and two girls. How many ways can we choose students? - Three-digit numbers
How many three-digit numbers are from the numbers 0 2 4 6 8 (with/without repetition)? - Wood bars
It is 9 bars 14 meters long and 9 bars 11 meters long. How many 5-meter laths are needed to make them? - Pump
What power does a pump output to move 4853 hl of water to a height of 31 m for 8 hours? - 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. - Identical 71234
How many ways can you divide two identical apples and: a) 3, b) 4, c) 5 identical pears between Janka and Mařenka? - Different 57811
How many different 6-member teams can be made up of seven boys and four girls if there are two or four girls in the team? - Four-member 20013
Determine how many ways it is possible to form a four-member team from 6 men and four women, where there are exactly two men. - Participants 8335
How many ways can you be rewarded in the 1st, 2nd, or 3rd place? The prize for 15 participants in the competition?
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