Question

Find the mean of first five odd multiples of five

Answer 1

The first five odd multiple of 5 are 5, 15, 25, 35, 45.

As per the question,

Average of the numbers = sum of number divided by the total number

Average of five of multiple of 5 = (5 + 15 + 25 + 35 + 45)/ 5

Average of five of multiple of 5 = 125/5

Average of five of multiple of 5 = 25

Answer 2

So we have the multiples of five as 5, 10, 15, 20, 25. But odd numbers are 5, 15, 25, 35, 45 and so on.

so to find the mean, 

5+15+25+35+45=125/5

=25. 

so the mean of five odd multiples of 5 is 25. 

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