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5 December, 21:15

How many different words of 3 letters can be formed from 4 different vowels and 7 different consonants so that each word contains two consonants and one vowel

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  1. 5 December, 21:29
    0
    84

    Step-by-step explanation:

    From 7 consonants, choose 2. The number of combinations is ₇C₂.

    From 4 vowels, choose 1. The number of combinations is ₄C₁.

    So the total number of combinations is:

    ₇C₂ * ₄C₁

    21 * 4

    84
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