Question

How many different number of 4 digits can be formed out of the digits 3, 5 , 6 , 7 , 7, 8 ?
pls elaborate​

Answer 1

Step-by-step explanation:

Example:

3 _ _ _, 3 6 _ _, 3 6 7 8…

All the permutations:

3678, 3687, 3768, 3786, 3867, 3876

6378, 6387, 6738, 6783, 6837, 6873

7368, 7386, 7638, 7683, 7836, 7863

8367, 8376, 8637, 8673, 8736, 8763

Answer 2

Answer:

There are infinite 4 digits which can be created from this no.'s