Register
How many​ seven-digit numbers are there when 0 and 5 cannot be the leading​ number?
3.5k views
4 votes
How many​ seven-digit numbers are there when 0 and 5

cannot be the leading​ number?

User Oleksii Shliama
by
7.7k points

1 Answer

6 votes
1,2,3,4,6,7,8,9
8 numbers

if you can repeat then
8*10⁶ numbers or 8000000 different numbers

if you can use each number only once then
8*9*8*7*6*5=120960 different numbers
User Mizhgun
by
8.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!