Next numbar riddle

What will be the next number in this series?

1 , 17 , 98 , 354 , ?

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SherlockHolmes Expert Asked on 7th July 2018 in Aptitude Question.
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  • 2 Answer(s)
    Best answer

    979
    1
    2^4+1(previous number)=17
    3^4+17=98
    4^4+98=354
    5^4+354=979

    gurjeet Curious Answered on 7th July 2018.
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    979.

    17-1 = 16 = Square of 4.
    98-17 = 81 = Square of 9.
    354-98 = 256 = Square of 16.

    So, 4,9,16 becomes a new series with increments with digits in order of: 5, 7..
    i.e., increments with +2. So next digit is 5,7,9,– (7+2 = 9)

    Hence, add this 9 to 16 gives 25. So square of 25 is 625.

    Add 625 to 354 which gives 979.

    harshu01 Curious Answered on 30th July 2018.
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