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The Rotokas of Papua New Guinea have twelve letters in their alphabet. The letters are: A, E, G, I, K, O, P, R, S, T, U, and V. Suppose license plates of five letters utilize only the letters in the Rotoka alphabet. How many license plates of five letters are possible that begin with either G or K?

 Jan 1, 2022
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G-x-x-x-x  can occur in 12 x 12 x 12 x 12 = 20,736 ways.

 

Similarly, K-x-x-x-x  can occur in 12 x 12 x 12 x 12 = 20,736 ways.

 

Adding, 20,736 + 20,736 = ....  ways

 Jan 1, 2022

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