SOLUTION: 1. Consider the numbers 2, 3, 4, 5, 6, and 7. How many two-digit numbers can be formed from these numbers if a. Repetition is not allowed? b. Repetition is allowed?

Question 866705: 1. Consider the numbers 2, 3, 4, 5, 6, and 7. How many two-digit numbers can be formed from these numbers if
a. Repetition is not allowed?
b. Repetition is allowed?

Found 2 solutions by richard1234, richwmiller:
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
One question per post.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
one problem per post
RELATED QUESTIONS
consider the numbers 2, 3, 5, 6 and 7. how many two digit numbers can be formed from... (answered by Edwin McCravy)
consider the numbers 1,4,5,8,9 and 0. if repetition is not aalowed, how many three-digit... (answered by math_helper)
How many different 4-digit even numbers can be formed from the digits 1,3,5,6,8, and 9 if (answered by ikleyn)
How many 3-digit even numbers can be formed from the digits 1,2,6,8, and 9 if no... (answered by math_helper)
1. How many different 4-digit numbers can be formed from the digits 2, 3, 4, 5, 6, 7, and (answered by Alan3354)
how many 3-digit numbers can be made with the digit 1,2,3,4,5,6,7 if repetition is... (answered by ikleyn)
How many 3 digit numbers can be formed less than 450 with and without repetition from the (answered by ikleyn)
How many 4-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if... (answered by robertb)
How many different 4-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6,... (answered by ikleyn,greenestamps)