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NDA 2021
Exam
NDA
Year
2021
Subject
Mathematics
Chapter
Sequences and Series

NDA 2021 · Mathematics · Sequences and Series

The geometric mean of a set of observations is computed as 10. The...

The geometric mean of a set of observations is computed as 10. The geometric mean obtained when each observation xix_i is replaced by 3xi43 x_i^4 is

Options

  1. A810810
  2. B900900
  3. C3000030000
  4. D8100081000

Correct answer

C. 3000030000

Step-by-step solution

Geometric mean =10=10 when, each observation is replaced by 3xi43 x_i^4 Now G.M. =3.(10)4=30000=3.(10)^4=30000
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