| http://www.w3.org/ns/prov#value | - Therfore 18Case c: The 3 letter code will contain both A and B but not togatherFirst Letter A , 2nd any letter other than A or B, Third Letter B1x3x1 = 3But The first letter can be either A or B. Therefore we have 2 cases 3x2=6Total no of ways = 18 + 18+ 6= 42 shrikantv Intern Joined: 09 Nov 2004 Posts: 13 Followers: 0 Kudos [?]:
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