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    Question

    Which of the following numbers will replace the question

    mark (?) in the given series? 380, 552, 870, ?, 1406
    A 982 Correct Answer Incorrect Answer
    B 992 Correct Answer Incorrect Answer
    C 929 Correct Answer Incorrect Answer
    D 972 Correct Answer Incorrect Answer

    Solution

    Starting with 19, each prime number is multiplied with the next number as below.   19 x 20 = 380; 23 x 24 = 552, 29 x 30 = 870, 31 x 32 = 992; 37 x 38 = 1406.   Hence, the missing number is 992. The correct answer is option (B).

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