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AMO 2021 - Secondary 4 (Grade 10) Question 22

AMO · AMO 2021 - Secondary 4 (Grade 10)

Question 22

EDUCATION contains the five vowels A, E, I, O, U and the four consonants C, D, N, T. How many five-letter uppercase code words can be formed using three vowels and two consonants from these letters? The words need not have a meaning. Use each available letter at most once.

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