Anonymous

How Many 4 Digit Combination You Can Make Using Digits 1,2,3,4,5,6,7,8,9?

5

5 Answers

Anonymous Profile
Anonymous answered
1000
Anonymous Profile
Anonymous answered
How Many 4 Digit Combination You Can Make Using Digits 1,2,3,4,5, without repeating the same number??
Ellie Hoe Profile
Ellie Hoe answered
The given numbers are 1, 2, 3, 4, 5, 6, 7, 8, 9. The total number of digits is 9.The number of four digit numbers can be calculated by using rule of combination.

number of four digit numbers = 9C4

number of four digit numbers = 9!/ 4!(9-4)!

number of four digit numbers = 9!/ 4!*5!

number of four digit numbers = 126
Anonymous Profile
Anonymous answered
10000

Answer Question

Anonymous