$9, 19, 40, 83, 170, 345, ?$

  • A
    $687$
  • B
    $696$
  • C
    $663$
  • D
    $645$

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Find the next term in the series: $5, 2, 7, 9, 16, 25, ?$

$2, 15, 41, 80, ?$

Observe the following table and determine which number will come in place of $(d)$:
$1260$$628$$312$$154$
$788$$(a)$$(b)$$(c)$$(d)$$(e)$

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