find the average of first 20 natural numbers
krverma:
please answer my question
Answers
Answered by
43
Natural numbers are positive whole numbers.
The first 20 natural numbers are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20.
Use the formula Average = Sum of Values ÷ Number of Values to find the answer.
(1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20) ÷ 20
= 210 ÷ 20
= 10.5
Hence, the average of the first 20 natural numbers is 10.5.
Answered by
20
n(n+1)÷2 = 20(20+1)÷ 2 = 20(21)÷2 = 210
avg = 210÷20 = 10 . 5
please mark brainliest
avg = 210÷20 = 10 . 5
please mark brainliest
Attachments:
n(n+1) ÷ 2 is formula for summation and average is summation divided by no of values.....
please mark brainliest
using this formula saves time so please mark brainliest
please mark brainliest
Similar questions