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

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Solution

Total numbers of alphabet $= 26$
Total numbers of consonants $= 21$

Probability is given by,
$P (E) = \frac{t o t a l o u t c o m e s}{f a v o r a b l e o u t c o m e}$

$P$ (choosing a consonant) $= \frac{21}{26}$

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