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    ​Which of the following numbers will replace the question mark (?) in the given series?10 , 21 , 38 , 62 , 94 , ?
    Question

    Which of the following numbers will replace the question mark (?) in the given series?
    10 , 21 , 38 , 62 , 94 , ?

    A.

    135

    B.

    155

    C.

    104

    D.

    72

    Correct option is A

    Given: 10 , 21 , 38 , 62 , 94 , ?
    Logic: Difference of two constitutive number is increasing from 11, 17, 24, 32, 41 (double difference follows 6, 7, 8, 9)
    21-10=11
    38-21=17
    62-38=24
    94-62=32
    Similarly,
    ?-94= 41
    ?=94+41
    ?=135
    Thus, Option A is the correct answer.

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