How many possible combinations of 4 numbers 1-9?

QUESTION POSTED AT 18/04/2020 - 06:09 PM

Answered by admin AT 18/04/2020 - 06:09 PM

1.       There are 10, 000 combinations, you have 10 choices for the four digit and there are 10 x 10 x 10 x 10 which is 4-digit combination from 1-9. This is called combinations; the calculation comes out to 10^4. 

Post your answer

Related questions

Three-sevenths of a number is 21. Find the number

QUESTION POSTED AT 01/06/2020 - 04:54 PM

Please help me with number 47.

QUESTION POSTED AT 01/06/2020 - 04:40 PM

Twice the difference of a number and 2 is 9

QUESTION POSTED AT 01/06/2020 - 04:37 PM