Quantitative Aptitude Ques 613

Question: Average of first five odd multiples of 3 is

Options:

A) 12

B) 16

C) 15

D) 21

Show Answer

Answer:

Correct Answer: C

Solution:

  • Average of first five odd multiples of 3 $ =\frac{3+9+15+21+27}{5} $ $ =\frac{3(1+3+5+7+9)}{5}=\frac{3\times 25}{5}=15 $
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