Question

How many 3-digits numbers which are greater than 300 can be formed from 6

digits (1,2,3,4,5,6)? while

i. Repetition not allowed

ii. Repetition allowed​

Answer 1

1. 123, 456 , 321, 654 , 576, 231, 312 , 213
2.221,334,665,337,445,566,211