How many different committees of 6 people can be formed from a class of 30 students?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
A class consists of 6 males and 7 females. How many committees of 7 are possible if the committee must consist of 2 males and 5 females?
How many different triads can be selected from the group 38 students?
- Fish tank
A fish tank at a pet store has 8 zebra fish. In how many different ways can George choose 2 zebra fish to buy?
How many 4-tones chords (chord = at the same time sounding different tones) is possible to play within 7 tones?
Division has 18 members: 10 girls and 6 boys, 2 leaders. How many different patrols can be created, if one patrol is 2 boys, 3 girls and 1 leader?
The village markets have 5 kinds of sweets, one weighs 31 grams. How many different ways a customer can buy 1.519 kg sweets.
- Permutations without repetition
From how many elements we can create 720 permutations without repetition?
How many elements can form six times more combinations fourth class than combination of the second class?
- The confectionery
The confectionery sold 5 kinds of ice cream. In how many ways can I buy 3 kinds if order of ice creams does not matter?
- Big factorial
How many zeros end number 116! ?
There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there?
How many ways can give away 32 playing cards to 4 player?
- Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
- Calculation of CN
We have a virus that lives one hour. Every half hour produce two child viruses. What will be the living population of the virus after 3.5 hours?
The player gets 8 cards of 32. What is the probability that it gets a) all 4 aces b) at least 1 ace
Find the value of the expression: 6!·10^-3