A list consists of all possible three-letter arrangements formed by using the letters above such that the first letter is D and one of the remaining letters is A. If no letter is used more than once in an arrangement in the list and one three-letter arrangement is randomly selected from the list, what is the probability that the arrangement selected will be DCA? ( ) A. 15 B. 16 C. 19 D. 110 E. 112
Added by Mohamed S.
Step 1
The problem states that the first letter must be D and one of the remaining letters must be A. Therefore, the letters available for the remaining two positions are A, B, C, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z. Show more…
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