3,5,16,82,1315,(  )

3,5,16,82,1315,(  )A.107834 B.12849 C.12847 D.108847

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150,75,50,37.5,30,(  )

150,75,50,37.5,30,(  )A.20 B.22.5 C.25 D.27.5

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2,6,30,210,2310,(  )

2,6,30,210,2310,(  )A.30160 B.30030 C.40300 D.32160

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