కింది శ్రేణికి చెందని సంఖ్యను గుర్తించండి.

7, 14, 56, 448, 2688, 26880

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NTPC CBT-I (Held On: 20 Jan 2021 Shift 1)
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  1. 448
  2. 2688
  3. 26880
  4. 56

Answer (Detailed Solution Below)

Option 1 : 448
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ఇక్కడ అనుసరించిన తర్కం:-

∴ ఇక్కడ, '448'కి బదులుగా '336' సంఖ్య సిరీస్‌కి చెందినది.

కాబట్టి, సరైన సమాధానం "448".

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