Question

A letter of English alphabets is chosen at random. The probability that it is a consonant is _________.

Answer 1

There are 26 letters in the English alphabets.

∴ Total number of cases = 26

Out of these 26 letters, 5 are vowels and 21 are consonants.

∴ Favourable number of cases = 21

Probability that a letter chosen is a consonant = $\frac{\mathrm{Favourable}\mathrm{number}\mathrm{of}\mathrm{cases}}{\mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{cases}}=\frac{21}{26}$

A letter of English alphabets is chosen at random. The probability that it is a consonant is $\underline{\frac{21}{26}}$.