શ્રેણીમાં ખૂટતું પદ શોધો: $7, 4, 5, 9, ?, 52.5, 160.5$

  • A
    $18$
  • B
    $19.5$
  • C
    $20$
  • D
    $20.5$

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આપેલ શ્રેણીમાંથી અસંગત સંખ્યા શોધો: $12, 20, 30, 42, 54, 72$.

શ્રેણીમાં પછીની સંખ્યા શોધો: $4, 7, 12, 19, 28, ?$

આપેલી શ્રેણીમાંથી અસંગત સંખ્યા શોધો: $32, 34, 37, 46, 62, 87, 123$.

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$10, 15, 15, 12.5, 9.375, 6.5625, ?$

$120, 15, 105, 17.5, 87.5, ?$

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