A letter of English alphabet is chosen at random. Determine the probability that the chosen letter is consonant.

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#### Solution

There are 26 letters in English alphabets.

∴ Total number of outcomes = 26

We know that there are 5 vowels and 21 consonants in English alphabets.

∴ Total number of favourable outcomes = 21

∴ Probability that the chosen letter is a consonant = `"Total number of favourable outcomes"/"Total number of outcomes"=21/26`

Concept: Basic Ideas of Probability

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