Variations - practice problems
Number of problems found: 256
- C(6,3)
C(6,3) + 3 P(6,3) - Equation: 4274
Solve the equation: V (2, x + 2) = 90 - N-gon
How many diagonals have convex 30-gon? - BRATISLAVA 35531
How many words can we make from all letters of the word BRATISLAVA? - Variations 8333
How many elements do we create 90 variations of 2 classes without repeating elements? - Variation equation
Solve combinatorics equation: V(2, x+8)=72 V(2,x+8) is variations, second class, from x+8 items. - How many 13
How many ways can X³ y⁴ z³ be written without an exponent? - Pins 2
How many different possible four digits pins can be found on the 10-digit keypad? - 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 2450 variations of the second class? - Options 3572
We roll three dice. Write down all the feast options. - Disco
At the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples? - A three-digit numbers
Determine the total number of positive three-digit numbers that contain a digit 6. - Variations 5437
From how many elements can we create six times as many variations of the second class without repetition as variations of the third class without repetition? - Seven
Seven friends agree to send everyone a holiday card. How many postcards were sent? - Six on dice
When throwing two dice, what is the probability they will fall at least one six? - Variations 4/2
Determine the number of items when the count of variations of the fourth class without repeating is 600 times larger than the count of variations of the second class without repetition. - Parking 72644
How many ways can ten cars park side by side in a parking lot? - Variations 26791
If the number of elements increases by two, the number of variations of the second class of these elements created by 38 increases. What is the original number of elements? - Probability 8801
We roll two different dice. What is the probability that a pair of even numbers will fall?
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