Question

find the average of first five multiples of 5

Answer 1

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First five multiple of 5 are 5 10. 15 20 25.
So average = sum of the observations/no. of observations=(5 +10+15+20+25/5)=75/5=15.
So the answer is 15 .

Answer 2

The average of the first five multiples of 5 is 15.

Given,

First 5 multiples of 5.

To find,

Average of the first 5 multiples of 5.

Solution,

Multiple, in mathematics of a number, is defined as the result obtained when this number is multiplied by any other whole number.

For example, 15 is a multiple of 5, since 15 = 5 × 3 ( the other whole number).

The first five multiples of 5 are:

5 × 1 = 5,

5 × 2 = 10,

5 × 3 = 15,

5 × 4 = 20,

5 × 5 = 25.

Now, the average of the above first five multiples of 5 can be determined as follows.

$average=\frac{5+10+15+20+25}{5} =\frac{75}{5}$

⇒ average = 15.

Therefore, the average of the first five multiples of 5, is 15.

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