The average (arithmetic mean) of 330 360 and 390 is

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The average (arithmetic mean) of 330, 360 and 390 is :

  1. A. $${3^{27}} + {3^{57}} + {3^{87}}$$
  2. B. $${3^{29}} + {3^{59}} + {3^{89}}$$
  3. C. $${3^{60}}$$
  4. D. $${3^{177}}$$

Answer: Option B

Here is complete explanation of The average (arithmetic mean) of 330 360 and 390 is .

Solution(By ExamCraze Team)

According to the question,
$$eqalign{ & Rightarrow frac{{{3^{30}} + {3^{60}} + {3^{90}}}}{3} cr & Rightarrow {3^{29}} + {3^{59}} + {3^{89}} cr} $$

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