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How many combinations of 4 students can you get from a 5 person swimming team?
Wiki User
∙ 13y ago
Any combination of 5 students leaves one student out. Since there are 5 possible students to leave out, the number of combinations of all but one student is 5.
Wiki User
∙ 13y ago
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In a survey 100 students were asked to choose swimming or soccer as their favorite sport Of those 14 more students chose soccer than chose swimming How many students chose soccer?
The answer is 86 because 100 studets were asked and 14 more students chose soccer than swimming so 100-14=86, then halve 86 to make 43 and 43, then add 43 and 14 to make 57 for soccer. So 57 people chose soccer, and 43 people chose swimming. All together it equals to 100 students.
How many combinations of drinks are there?
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How many combinations of 4 person committees can be formed in a class of 20 students?
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How many combinations can a particular person be always included Choosing 2 people out of 10?
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How many combinations of 4 students can a teacher choose from 30 students?
The answer is 30C4 = 30*29*28*27/(4*3*2*1) = 27,405
How many swimming events can a person swim in the Olympics?
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How many ways can a committee of 6 be chosen from 5 teachers and 4 students if all are equally eligible?
There are 84 different combinations possible for the committee of 6, taken from4 students and 5 teachers.1.- The committee with 4 students has 4C4 number of combinations of 4 students out of 4 and 5C2 number of combinations of 2 teachers out of 5 to be combined with. The product of these two give the number of different combinations possible in a committee formed by 4 students and 2 teachers.2.- The committee with 3 students has 4C3 number of combinations of 3 students out of 4 and 5C3 number of combinations of 3 teachers out of 5 to be combined with. The product of these two give the number of different combinations possible in a committee formed by 3 students and 6 teachers.3.- The committee with 2 students has 4C2 number of combinations of 2 studentsout of 4 and 5C4 number of combinations of 4 teachers out of 5 to be combined with. The product of these two give the number of different combinations possible in a committee formed by 2 students and 4 teachers.4.- The committee with 1 student has 4C1 number of combinations of 1 student out of 4 students and 5C5 number of combinations of 5 teachers out of 5 to be combined with. The product of these two give the number of different combinations possible in a committee formed by 1 student and 5 teachers.We now add up all possible combinations:4C4∙5C2 + 4C3∙5C3 + 4C2∙5C4 + 4C1∙5C5 = 1(10) + 4(10) +6(5) + 4(1) = 84There are 84 different combinations possible for the committee of 6, taken from4 students and 5 teachers.[ nCr = n!/(r!(n-r)!) ][ n! = n(n-1)(n-2)∙∙∙(3)(2)(1) ]
In a survey 100 students were asked to choose swimming or soccer as their favorite sport Of those 14 more students chose soccer than chose swimming How many students chose soccer?
The answer is 86 because 100 studets were asked and 14 more students chose soccer than swimming so 100-14=86, then halve 86 to make 43 and 43, then add 43 and 14 to make 57 for soccer. So 57 people chose soccer, and 43 people chose swimming. All together it equals to 100 students.
How many medals can be won by one person in swimming Olympics?
20
How many different coin combinations could a person have if he has exactly 66 cents?
I think there are 88 different combinations of coins that can make up 66 cents.
Therese paid 18 dollars for tickets to a drama club show Each adult ticket cost 3 dollars and each student ticket cost two dollars How many different combinations of tickets could she have bought?
2 adults, 6 students 4 adults, 3 students 6 adults 9 students 4 combinations
What is the symbal for swimming area?
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How many combinations are there in 21 numbers?
they are 21C2 combinations
