The number in the brackets follow the same rule. what is the missing number? [3,4,17] [1,2,7][11,?,37][4,7,26] A. 4 B. 2 C. 3 D.1?

1 Answer

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  • 1 month ago

    Think of each triple as:

    [x, y, z]

    The pattern seems to be:

    3x + 2y = z

    In other words, triple the first number and add double the second number to get the third number.

    3*3 + 2*4 = 17

    3*1 + 2*2 = 7

    3*4 + 2*7 = 26

    For the partial triple:

    3*11 + 2*y = 37

    33 + 2y = 37

    2y = 4

    y = 2

    Answer:

    B. 2

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