$980, 484, 236, 112, 50, ?, 3.5$

  • A
    $25$
  • B
    $17$
  • C
    $21$
  • D
    $19$

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श्रृंखला में लुप्त संख्या ज्ञात कीजिए: $5, 6, 9, 15, ?, 40$.

$165, 195, 255, 285, 345, ?$

दी गई श्रृंखला में से विषम संख्या ज्ञात कीजिए: $13, 25, 40, 57, 79, 103, 130$.

$1050, 420, 168, 67.2, 26.88, 10.752, ?$

दी गई श्रृंखला में से विषम संख्या ज्ञात कीजिए: $8, 12, 24, 46, 72, 108, 152$.

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