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    Question

    Find the missing term in the series: 3, 8, 19,

    42, 89, ?
    A 136 Correct Answer Incorrect Answer
    B 145 Correct Answer Incorrect Answer
    C 184 Correct Answer Incorrect Answer
    D 167 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Differences: 8βˆ’3 = 5 19βˆ’8 = 11 42βˆ’19 = 23 89βˆ’42 = 47 Pattern in differences: each = (previous difference Γ— 2) + 1 5Γ—2+1 = 11 11Γ—2+1 = 23 23Γ—2+1 = 47 Next difference = 47Γ—2+1 = 95 So next term = 89 + 95 = 184 Answer = 184

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