SOLUTION: 28. How many 4-digit numbers can be formed from set A= {0,1,2,3,4,5,6} if there is no repetition ( note: 0123 is not a 4-digit number because it equals 123.) d) How many of

Question 144802: 28. How many 4-digit numbers can be formed from set A= {0,1,2,3,4,5,6}
if there is no repetition ( note: 0123 is not a 4-digit number
because it equals 123.)
d) How many of the numbers are divisible by 5? (Hint: you must consider
2 cases)
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
There are only choices for the 1st number, since I can't use
Once I choose that number, there are choices for the 2nd number, since
I can use . There are choices for the 3rd and choices
for the 4th number
The possible numbers are
answer
Any number in theis group of that ends in 0 or 5 will be
divisible by
There are
of these that end in
of these that end in
So, the answer is of the 4-digit number are
divisible by
RELATED QUESTIONS
These are the questions I'm having problems with: 24.b) (n+2)! / n! = 56 25. solve (answered by nabla)

2. Three-digit numbers are formed using the digits 0, 1, 2, 3, 4, 5 and 6. Note that a... (answered by KMST)

1. Consider the numbers 2, 3, 4, 5, 6, and 7. How many two-digit numbers can be formed... (answered by richard1234,richwmiller)

how many 3-digit numbers can be made with the digit 1,2,3,4,5,6,7 if repetition is... (answered by ikleyn)

can someone help please How many 3-digit numbers can be formed using the digits 0, 1,... (answered by SAT Math Tutor)

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 4-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if... (answered by robertb)

How many 4-digit numbers can be formed from the Set A = (0,1,2,3,4,5,6) if there is no... (answered by Edwin McCravy)

If repetition is not allowed, how many 4-digit numbers can be formed from the digits 0,... (answered by Solver92311)