Question

A letter is chosen at random from the word MATHEMATICS. Find the probability that it will be

a) an H
b) an M
c) a B
d) a vowel,
e) a letter other than an A​

Answer 1

a) 1/11

b) 2/11

c) 0/11

d) 4/11

e) 9/11

Explanation:

'MATHEMATICS' has 11 letters.

a) there is only one H out of the 11 letters meaning the probability is 1/11

b) there are two M s out of the 11 letters meaning the probability is 2/11

c) there is no B in the word meaning the probability is 0/11

d) there are four vowels (2 A s, 1 E and 1 I) out of the 11 letters meaning the probability is 4/11

e) there two A s in the word and 11-2=9 meaning the probability is 9/11

Hope this helps :)