Out of 7 consonants and 4 vowels how many words... - JAMB Mathematics 2018 Question
Out of 7 consonants and 4 vowels, how many words of 3 consonants and 2 vowels can be formed?
A
210
B
1050
C
21400
D
25200
correct option: a
Words having 3 consonants and 2 vowels out of 7 consonants and 4 vowels, this implies that the number of such words is 7/3C x 4/2C = 35 x 6
= 210
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