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30 September, 18:28

A computer accessory comes in red (R), gray (G), or black (B) and has an optical mouse (O), mechanical mouse (M), or trackball (T). What are all the different combinations available for the accessory?

A) {R, G, B}

B) {RO, GM, BT}

C) {R, G, B, O, M, T}

D) {RO, RM, RT, GO, GM, GT, BO, BM, BT}

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Answers (2)
  1. 30 September, 18:39
    0
    D) {RO, RM, RT, GO, GM, GT, BO, BM, BT}

    Step-by-step explanation:

    Three colors

    Three types

    3x3=9

    So there are 9 combinations
  2. 30 September, 19:29
    0
    I think is D because have different combinations for the accessories
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