Question

1) What is the average of first five multiples of 12?
A. 36
B. 38
C. 40

Answer 1

The average of first five multiples of 12 is "36".

Step-by-step explanation:

The  first five multiples of 12 are

12, 24, 36, 48 and 60.

∴ Average = $\dfrac{Sum of numbers}{total numbers}$

∴ The average of first five multiples of 12

= $\dfrac{12 + 24 + 36 + 48 + 60}{5}$

= $\dfrac{180}{5}$

= 36

Hence, the average of first five multiples of 12 is 36.

Answer 2

Given:

Number = 12  

To Find: Average of first five multiples of 12

Calculation:

Multiple of any number is the numeric result of integer multiplied with that particular number.  

Here, first five multiples means multiplication of 12 with first five integers.  

1st multiple = 12 * 1 = 12  

2nd multiple = 12* 2 = 24  

3rd multiple = 12 * 3 = 36  

4th multiple = 12 * 4 = 48

5th multiple = 12 * 5 = 60  

Now, average of numbers is actually the middle number of the sequence. Average is addition of all the values and dividing the sum by number of values.  

Sum of multiples = 12 + 24 + 36 + 48 + 60  

Number of multiples = 5  

Average = $\frac{12+24+36+48+60}{5}$  

Answer:

Average of first five multiples of 12 is A. 36.