SOLUTION: how many different odd number of four digits can be formed with the digits 1,2,3,4,5,6,7.the digits in any number being all different?
Algebra.Com
Question 770104: how many different odd number of four digits can be formed with the digits 1,2,3,4,5,6,7.the digits in any number being all different?
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
how many different odd number of four digits can be formed with the digits 1,2,3,4,5,6,7.the digits in any number being all different?
Work:
the last number can be 1,3,5 or 7
And the first 3 numbers can be selected in 6P3 = 120 ways
So the answer is 120*7 = 840
Answer: 840
You can ask me more at: mthman@gmail.com
Thanks
RELATED QUESTIONS
From the digits (1, 2, 3, 4, 5, 6, 7), how many numbers of four different digits each can (answered by Edwin McCravy)
How many numbers of 5 digits can be formed with the digits 0, 1, 2, 3, 4, 6 & 8 with no... (answered by Edwin McCravy)
Most ATMs require that you enter a four-digit code, using the digits 0 to 9. How many... (answered by solver91311)
How many odd numbers of four different digits can be formed by choosing from the digits... (answered by vleith)
How many 7-digit numbers can be formed using the digits 1, 2, 3, 4, and 5, provided that... (answered by Edwin McCravy,ikleyn,mccravyedwin)
How many four-digit numbers can be
formed using the digits 1, 2, 3, 4, 5, 6, if the... (answered by mccravyedwin,Edwin McCravy,ikleyn)
If no digit is repeated in any number, how many four-digit numbers can be formed out of... (answered by mathmate)
How many numbers can be formed with five different digits from {0, 1, 2, 3, 4, 5, 6, 7}... (answered by Edwin McCravy)
Find the number of different number of 4 digits that can be formed with the digits... (answered by ramkikk66)