Question

Find the mean of the whole number s between 5 and 20 inclusive which are divisible by 2 or 3

Answer 1

Answer:

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Answer 2

Concept

Division is one of the basic four mathematical operations used In arithmetic. Mean is the average of the numbers. We can calculate mean by adding all the number then dividing the sum by total numbers.

Given

1) Whole number between 5 and 20

Find

Mean of whole numbers between 5 and 20 which are divisible by 2 or 3

Solution

Lets find the whole numbers between 5 and 20 which are divisible by 2 and 3

Numbers divisible by 2 are

6,8,10,12,14,16,18,20

Numbers divisible by 3 are

6,9,12,15,18

So, Numbers are

6,8,9,10,12,14,15,16,18,20

Mean = Sum of numbers / Total numbers

Mean = (6+8+9+10+12+14+15+16+18+20)/10

Mean = 128/10

Mean = 12.8

The mean of the whole number s between 5 and 20 inclusive which are divisible by 2 or 3 is 12.8

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