SOLUTION: How many different 4-digit numbers can be formed from the digits 2, 3,4,5,6,7, and 8 if: a. Repetition of digits is not allowed? b. Repetition of digits is allowed? c.How

Algebra ->  Probability-and-statistics -> SOLUTION: How many different 4-digit numbers can be formed from the digits 2, 3,4,5,6,7, and 8 if: a. Repetition of digits is not allowed? b. Repetition of digits is allowed? c.How      Log On


   

Question 634815: How many different 4-digit numbers can be formed from the digits 2, 3,4,5,6,7, and 8 if:
a. Repetition of digits is not allowed?
b. Repetition of digits is allowed?
c.How many of them are odd numbers? Refer to letter a.
d. How many of them are even numbers? Refer to letter b.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

How many different 4-digit numbers can be formed from the 6 digits 2, 3,4,5,6,7, and 8 if: 

a. Repetition of digits is not allowed?  6%2A5%2A4%2A3

b. Repetition of digits is allowed? 6%2A6%2A6%2A6

c.How many of them are odd numbers? Refer to letter a.6%2A5%2A4%2A3%2F2

d. How many of them are even numbers?Refer to letter b.6%2A6%2A6%2A6%2F2