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What is the next number in …

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What is the next number in series 6, 15, 35, 77, 143,.......? (A) 171 (B) 151 (C) 191 (D) 181

    • Posted by Vinayak Radhakrishnan 5 years, 7 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Kunal Kumar Jha 5 years, 7 months ago

    181

    0Thank You

    Yogita Ingle 5 years, 7 months ago

    3 * 2=6
    3*5 = 15
    5*7 = 35
    11*7 = 77
    11*13 = 143
    13*17 = 221

    0Thank You

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