Question

What is the average of even numbers from 1 to 19​

Answer 1

Answer: First 20 even numbers are 2,4 …40.

Average = (2+40)/2

Sum = 20*(2+40)/2 = 420.

First 20 odd numbers are 1,3,…39.

Average = (1+39)/2

Sum = 20*(1+39)/2 = 400.

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Answer 2

Answer:

10 is the answer

Step-by-step explanation:

Sum of even no. between 1,19 is 90. 90/9=10