Multiplication principle + multiplication - math problems

Number of problems found: 175

• Hockey
Hockey match ended 8:2. How many different matches could be?
• PIN - codes
How many five-digit PIN - code can we create using the even numbers?
• Medals
In how many ways can be divided gold, silver and bronze medal among 21 contestant?
• 2nd class combinations
From how many elements you can create 4560 combinations of the second class?
• Menu
On the menu are 12 kinds of meal. How many ways can we choose four different meals into the daily menu?
• Disco
On the disco goes 12 boys and 15 girls. In how many ways can we select four dancing couples?
• Subsets
How many are all subsets of set ??
• Possible combinations - word
How many ways can the letters F, A, I, R be arranged?
• Pins 2
how many different possible 4 digits pins can be found on the 10-digit keypad?
• Dice
We throw five times the dice. What is the probability that six fits exactly twice?
• Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
• Combinatorics
The city has 7 fountains. Works only 6. How many options are there that can squirt ?
• Seven
Seven friends agree to send everyone a holiday card. How many postcards were sent?
• Tricolors
From the colors - red, blue, green, black and white, create all possible tricolors.
• Two-element combinations
Write all two-element combinations from elements a, b, c, d.
• Bits, bytes
Calculate how many different numbers can be encoded in 16-bit binary word?
• Tokens
In the non-transparent bags are red, white, yellow, blue tokens. We 3times pull one tokens and again returned it, write down all possibilities.
• 2nd class variations
From how many elements you can create 2450 variations of the second class?
• Probability
What are the chances that the lottery, in which the numbers are drawn 5 of 50 you win the first prize?
• Dice
We throw 10 times a play dice, what is the probability that the six will fall exactly 4 times?

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