Question 844978: How many three-digit numbers may be formed using the elements from the set {1,2,3,4,5} if no elements may be used more than once in a number and both even and odd elements from the set must be used in each number?
Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website!
Hi,
Sorry, got on the track of number of sets..not the number of three digit numbers
Permutations need to used. Order Important!
How many three-digit numbers may be formed using the elements from the set {1,2,3,4,5}
if no elements may be used more than once in a number
and both even and odd elements from the set must be used in each number
Only one way the three-digit number can contain all even or odd numbers {1,3,5}
3P3 =6 ways the three odds can make a three digit number
All ways 3 digit numbers can be made from {1,2,3,4,5}: 5P3 = 60
ways when both even and odd elements from the set must be used in each number
|
|
|