Question

How many 4 digit numbers are possible with the digits 1, 2, 3, 6, 7, 8 and 9 without​

Answer 1

Step-by-step explanation:

360 numbers are

possible by 4

Answer 2

Step-by-step explanation:

4 digit numbers possible without repeating,

_ _ _ _

so,

9C1 * 8C1 * 7C1 * 6C1

or

9*8*7*6

= 3024

so 3024 numbers are possible with given set of numbers