Question

Find the average of all the even numbers less than or equal to 40.​

Answer 1

Answer:

21

Step-by-step explanation:

average= sum of observations/no of observations

2+4+6....+40/20

2(1+2+3...+20)/20

1+2+3..+20/10

sum of n natural no= n(n+1)/2

sum of natural no till 20= 20*21/2=210

210/10

21

hope it helps

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Answer 2

Answer:

20.5

Step-by-step explanation:

Sum