Variations - practice for 14 year olds
Number of problems found: 160
- Medals
How many ways can gold, silver, and bronze medals be divided among 21 contestants? - 2nd class variations
From how many elements can you create 5112 variations of the second class? - Six on dice
When throwing two dice, what is the probability they will fall at least one six? - Parking 72644
How many ways can ten cars park side by side in a parking lot? - Probability 8801
We roll two different dice. What is the probability that a pair of even numbers will fall? - Possible combinations - word
How many ways can the letters F, A, I, and R be arranged? - Olympics metals
How many ways can one win six athletes' medal positions in the Olympics? Metal color matters. - Task of the year
Find the number of integers from 1 to 106 with ending four digits 2015. - Vans
In how many ways can 5 shuttle vans line up at the airport? - Five-digit 37121
How many different five-digit numbers can we create from digits 4 and 5? - Different 35501
Dana received four new books. How many different orders can she read them? - Five-digit 35261
How many five-digit numbers do we create from digits 1, 2, and 3? - Three digit from four digits
How many three-digit numbers can you make using the digits 4,6,7, and 9? - Chocolates
How many ways can we distribute eight different chocolates to four children? - Combinatorics
The city has 7 fountains. Works only 6. How many options are there that can squirt? - Bits, bytes
Calculate how many different numbers can be encoded in a 16-bit binary word. - Groups 72194
I have eight groups. How could they place first, second, and third? - Numbers 7755
How many digits 7 are in numbers from 1 to 777? - Assemble 6449
How many natural numbers less than 400 can I assemble if the numbers do not repeat? - Three coins
In a game of chance where three coins are tossed, a player wins if two heads and a tail come up. What are the chances of this occurring?
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