Out of 7 constants and 4 vowels how many words of 3 consonants and 2 vowels can be formed?  Pick
A) 210 B) 25000 C) 25200 D) 250 E) 20000
Number of ways of selecting (3 consonants out of 7) and (2 vowels out of 4)   = 7252003 * 4252002   = 210   Number of groups each having 3 consonants and 2 vowels = 210   Each group contains 5 letters   Number of ways of arranging 5 letters among themselves   = 5! = (5 * 4 * 3 * 2 * 1)   = 210   Required number of words = (210 * 210)   = 25200   ANSWER 25200 25200
<result>C</result>
Out of 7 constants and 4 vowels how many words of 3 consonants and 2 vowels can be formed?