Table of Contents
- 1 How many ways are there to place 12 people into 4 groups of equal size?
- 2 How many ways are there to divide 50 peoples into 3 groups so that each group contains members equal to a prime number?
- 3 How many ways can 30 students be arranged in a 4 student line?
- 4 How many ways can you divide a set into two groups?
- 5 How many groups of 2 can be made with 3 groups?
- 6 What is division by grouping?
How many ways are there to place 12 people into 4 groups of equal size?
In how many ways can we divide 12 students in groups of fours. A group of 4 can be chosen from 12 students is : 4C12=495 which is wrong answer and answer is 5775 Please help on this..
How many ways are there to divide 50 peoples into 3 groups so that each group contains members equal to a prime number?
The answer is equal to the number of solutions of a+b+c+d=24 with a,b,c,d>=0. But this is just 27 choose 3 = 2925.
How many ways are there to divide four Indian countries and four china countries into four groups of to each such that at least one group must have only Indian countries?
Discussion Forum
Que. | How many ways are there to divide 4 Indian countries and 4 China countries into 4 groups of 2 each such that at least one group must have only Indian countries? |
---|---|
b. | 45 |
c. | 12 |
d. | 76 |
Answer:6 |
How many ways can 30 students be arranged in a 4 student line?
30×29×28×27=657,720 possible selections.
How many ways can you divide a set into two groups?
If you have N persons, choose any subset of them, form a group with them, and form another group with the rest of them. Since there are 2N subsets of a set with N elements, there are 2N ways of dividing the persons into two groups. While doing this, there are (n 3) ways of choosing a group with exactly 3 persons.
How many people will one group contain?
Two groups will contain 3 people. One group will contain 2 people. One group will contain 1 person. ( 10 3) ( 7 3) ( 4 2) ( 2 1) 4! The numerator represents the grouping and the denominator represents the fact that the order of the grouping does not matter.
How many groups of 2 can be made with 3 groups?
We have 3 circled groups, which means that 3 groups of 2 can be made. Our answer to the division is 3. The answer to a division is the number of equal groups that can be made. We have 3 groups and so, 3 is the answer to the division 6 ÷ 2 = 3.
What is division by grouping?
Division by grouping is a strategy used to introduce the concept of division. Start with the number we are dividing. Here we can draw 10 dots or use 10 counters. Collect this amount into groups of the number we are dividing by. We are dividing by 5, so we collect the counters into groups of 5. We have 2 groups and so, the answer is 2.