# Variations + multiplication - practice problems

#### Number of problems found: 107

- Hockey players

After we cycle, five hockey players sit down. What is the probability that the two best scorers of this crew will sit next to each other? - Training

The table contains tennis training schedule for Saturday's younger students during the winter indoor season. Before the start of the summer season is preparing a new training schedule. Tomas Kucera will be able to practice only in the morning, sisters Kov - Variations

Determine the number of items when the count of variations of fourth class without repeating is 42 times larger than the count of variations of third class without repetition. - Task of the year

Determine the number of integers from 1 to 10^{6}with ending four digits 2015. - Combinatorics

The city has 7 fountains. Works only 6. How many options are there that can squirt? - Numbers

How many different 3 digit natural numbers in which no digit is repeated can be composed of digits 0,1,2? - Seating rules

In a class are 24 seats but in 7.B class are only 18 students. How many ways can students sit? (The class has 12 benches. A bench is for a pair of students.) Result (large number) logarithm and thus write down as powers of 10. - Medals

In how many ways can be divided gold, silver, and bronze medal among 21 contestants? - Peak

Uphill leads 2 paths and 1 lift. a) How many options back and forth are there? b) How many options to get there and back by not same path are there? c) How many options back and forth are there that we go at least once a lift? - Cars plates

How many different licence plates can country have, given that they use 3 letters followed by 3 digits? - Lock

A combination lock will open when the right choice of 3 numbers (from 1 to 16 inclusive) is selected. A. How many different lock combinations are possible? B. Is the combination lock named appropriately? - Coin and die

Flip a coin and then roll a six-sided die. How many possible combinations are there? - Area codes

How many 6 digit area codes are possible if the first number can't be zero? - Vans

In how many ways can 9 shuttle vans line up at the airport? - Pairs

At the table sit 10 people, 5 on one side and 5 on the other side. Among them are 3 pairs. Every pair wants to sit opposite each other. How many ways can they sit? - No. of divisors

How many different divisors have number 13^{ 4}* 2^{ 4}? - Toys

3 children pulled 12 different toys from a box. Many ways can be divided toys so that each child had at least one toy? - 7 heroes

9 heroes galloping on 9 horses behind. How many ways can sort them behind? - Subsets

How many are all subsets of set C = (97, 67, 66, 18, 59, 64)? - Flags

How many different flags can be made from colors red, yellow, blue, green, white to consist of three different colors?

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See also our variations calculator. Variations - practice problems. Multiplication practice problems.