medium · GMAT Quant
An AI researcher uses 3-letter distinct labels from the set A, E, I, B, C, D, F, G.
How many such labels contain exactly two vowels?
An AI researcher uses 3-letter distinct labels from the set A, E, I, B, C, D, F, G. How many such labels contain exactly two vowels?
- 90
- 15
- 180
- 30
- 60
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