Question

find the average of 20 18 21 and17​

Answer 1

Answer:

The average of   $20,18,21,17$  is $19$

Step-by-step explanation:

Finding average is easy, take the sum of all the terms given for finding the average and then divide it by the number of terms.

Here four numbers are given. So take the sum of these four numbers and divide the sum by four, the answer is the average.

That is average $=$ sum of terms / number of terms

So,

Sum of four terms $=20+18+21+17=76$

number of terms $=4$

Hence the average $=76/4=19$.

Hence the answer

thank you

Answer 2

Answer:

The average of 20 18 21 and 17 is 19

Step-by-step explanation:

= 20 + 18 + 21 + 17 / 4

= 76 / 4

= 19

Hope it helps you