Out of 7 constants and 4 vowels how many words of 3 consonants and 2 vowels can be formed?
Choose the correct choice from the following answers:
A) 200 B) 20000 C) 25200 D) 2500 E) 2000
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
<result>C</result>
Out of 7 constants and 4 vowels how many words of 3 consonants and 2 vowels can be formed?