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38 vote

Find the mean of first 50 natural numbers.

Asked on by | Votes 38 | Views: 869 | Tags: average     | quantitative aptitude     | Add Bounty

Find the mean of first 50 natural numbers.
1). 26
2). 25
3). 25.5
4). 24


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1 answers

26 vote
Answered by on | Votes 26 |

Mean = (Sum of numbers) / (number of terms)

Sum of 1st 50 natural numbers = n(n + 1)/2 = 50 × 51/2 = 1275

Number of terms = 50

So, Mean = 1275/50 = 25.5

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