Question

How many numbers can be formed using only odd digits and each digit can be used no more than once?

Answer 1

Answer:

I think it might be 49

Step-by-step explanation:

. .

Answer 2

Answer:

1

13

135

1357

13579      

5 cases here.

Total cases +1

So we get 6*x3=126

I hope u understood, if u didn't don't worry this was a higher level question