The number of arrangements that can be formed from the letters a,b,c,d,e,f taken 3 at a time without repetition and each arrangement containing at least one vowel?OPTIONS: - 96
- 128
- 24
- 72
The number of arrangements that can be formed from the letters a,b,c,d,e,f taken 3 at a time without repetition and each arrangement containing at least one vowel?
OPTIONS:
- 96
- 128
- 24
- 72